Home / 129,357,275.94-178,502,318.46-73,587,855.78

Finding the Fourth Proportional to 129,357,275.94, 178,502,318.46 and 73,587,855.78

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Solution

The fourth proportional to 129,357,275.94, 178,502,318.46 and 73,587,855.78 is: 101,545,141.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,357,275.94 : 178,502,318.46 = 73,587,855.78 : x
  2. Step 2: Convert to fraction form
    129,357,275.94/178,502,318.46 = 73,587,855.78/x
  3. Step 3: Cross multiply
    129,357,275.94x = 178,502,318.46 × 73,587,855.78
  4. Step 4: Simplify right side
    129,357,275.94x = 13,135,602,867,230,112
  5. Step 5: Solve for x
    x = 13,135,602,867,230,112/129,357,275.94
  6. Step 6: Final answer
    x = 101,545,141.33

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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.