Home / 15,304,154.83-21,120,688.07-8,428,635.07

Finding the Fourth Proportional to 15,304,154.83, 21,120,688.07 and 8,428,635.07

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Solution

The fourth proportional to 15,304,154.83, 21,120,688.07 and 8,428,635.07 is: 11,632,042.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,304,154.83 : 21,120,688.07 = 8,428,635.07 : x
  2. Step 2: Convert to fraction form
    15,304,154.83/21,120,688.07 = 8,428,635.07/x
  3. Step 3: Cross multiply
    15,304,154.83x = 21,120,688.07 × 8,428,635.07
  4. Step 4: Simplify right side
    15,304,154.83x = 178,018,572,105,995.12
  5. Step 5: Solve for x
    x = 178,018,572,105,995.12/15,304,154.83
  6. Step 6: Final answer
    x = 11,632,042.02

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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.