Home / 13,205,612.33-18,222,061.46-7,697,609.09

Finding the Fourth Proportional to 13,205,612.33, 18,222,061.46 and 7,697,609.09

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Solution

The fourth proportional to 13,205,612.33, 18,222,061.46 and 7,697,609.09 is: 10,621,719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205,612.33 : 18,222,061.46 = 7,697,609.09 : x
  2. Step 2: Convert to fraction form
    13,205,612.33/18,222,061.46 = 7,697,609.09/x
  3. Step 3: Cross multiply
    13,205,612.33x = 18,222,061.46 × 7,697,609.09
  4. Step 4: Simplify right side
    13,205,612.33x = 140,266,305,933,034.67
  5. Step 5: Solve for x
    x = 140,266,305,933,034.67/13,205,612.33
  6. Step 6: Final answer
    x = 10,621,719.19

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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.