Home / 207,172,340.10-310,795,834.95-86,016,039.30

Finding the Fourth Proportional to 207,172,340.10, 310,795,834.95 and 86,016,039.30

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Solution

The fourth proportional to 207,172,340.10, 310,795,834.95 and 86,016,039.30 is: 129,039,555.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,172,340.10 : 310,795,834.95 = 86,016,039.30 : x
  2. Step 2: Convert to fraction form
    207,172,340.10/310,795,834.95 = 86,016,039.30/x
  3. Step 3: Cross multiply
    207,172,340.10x = 310,795,834.95 × 86,016,039.30
  4. Step 4: Simplify right side
    207,172,340.10x = 26,733,426,753,335,512
  5. Step 5: Solve for x
    x = 26,733,426,753,335,512/207,172,340.10
  6. Step 6: Final answer
    x = 129,039,555.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.