Home / 1,409,707,101.68-1,945,281,927.57-815,029,916.33

Finding the Fourth Proportional to 1,409,707,101.68, 1,945,281,927.57 and 815,029,916.33

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Solution

The fourth proportional to 1,409,707,101.68, 1,945,281,927.57 and 815,029,916.33 is: 1,124,675,448.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,707,101.68 : 1,945,281,927.57 = 815,029,916.33 : x
  2. Step 2: Convert to fraction form
    1,409,707,101.68/1,945,281,927.57 = 815,029,916.33/x
  3. Step 3: Cross multiply
    1,409,707,101.68x = 1,945,281,927.57 × 815,029,916.33
  4. Step 4: Simplify right side
    1,409,707,101.68x = 1,585,462,966,667,446,784
  5. Step 5: Solve for x
    x = 1,585,462,966,667,446,784/1,409,707,101.68
  6. Step 6: Final answer
    x = 1,124,675,448.38

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Half scale
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Double scale
Find fourth proportional to 1,409,707,102.68, 1,945,281,928.95 and 815,029,917.33
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.