Home / 1,409,917,048.92-1,945,568,581.20-774,804,145.68

Finding the Fourth Proportional to 1,409,917,048.92, 1,945,568,581.20 and 774,804,145.68

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Solution

The fourth proportional to 1,409,917,048.92, 1,945,568,581.20 and 774,804,145.68 is: 1,069,165,454.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,917,048.92 : 1,945,568,581.20 = 774,804,145.68 : x
  2. Step 2: Convert to fraction form
    1,409,917,048.92/1,945,568,581.20 = 774,804,145.68/x
  3. Step 3: Cross multiply
    1,409,917,048.92x = 1,945,568,581.20 × 774,804,145.68
  4. Step 4: Simplify right side
    1,409,917,048.92x = 1,507,434,602,418,515,712
  5. Step 5: Solve for x
    x = 1,507,434,602,418,515,712/1,409,917,048.92
  6. Step 6: Final answer
    x = 1,069,165,454.50

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Double scale
Find fourth proportional to 1,409,917,049.92, 1,945,568,582.58 and 774,804,146.68
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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.