Home / 130,836,614.79-180,555,722.51-72,101,387.32

Finding the Fourth Proportional to 130,836,614.79, 180,555,722.51 and 72,101,387.32

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Solution

The fourth proportional to 130,836,614.79, 180,555,722.51 and 72,101,387.32 is: 99,500,572.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,836,614.79 : 180,555,722.51 = 72,101,387.32 : x
  2. Step 2: Convert to fraction form
    130,836,614.79/180,555,722.51 = 72,101,387.32/x
  3. Step 3: Cross multiply
    130,836,614.79x = 180,555,722.51 × 72,101,387.32
  4. Step 4: Simplify right side
    130,836,614.79x = 13,018,318,081,535,950
  5. Step 5: Solve for x
    x = 13,018,318,081,535,950/130,836,614.79
  6. Step 6: Final answer
    x = 99,500,572.55

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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.