Home / 131,397,646.65-181,329,926.72-72,664,263.15

Finding the Fourth Proportional to 131,397,646.65, 181,329,926.72 and 72,664,263.15

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Solution

The fourth proportional to 131,397,646.65, 181,329,926.72 and 72,664,263.15 is: 100,277,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,397,646.65 : 181,329,926.72 = 72,664,263.15 : x
  2. Step 2: Convert to fraction form
    131,397,646.65/181,329,926.72 = 72,664,263.15/x
  3. Step 3: Cross multiply
    131,397,646.65x = 181,329,926.72 × 72,664,263.15
  4. Step 4: Simplify right side
    131,397,646.65x = 13,176,205,511,788,976
  5. Step 5: Solve for x
    x = 13,176,205,511,788,976/131,397,646.65
  6. Step 6: Final answer
    x = 100,277,332.57

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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.