Home / 207,172,338.10-310,795,831.95-86,016,037.30

Finding the Fourth Proportional to 207,172,338.10, 310,795,831.95 and 86,016,037.30

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Solution

The fourth proportional to 207,172,338.10, 310,795,831.95 and 86,016,037.30 is: 129,039,552.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,172,338.10 : 310,795,831.95 = 86,016,037.30 : x
  2. Step 2: Convert to fraction form
    207,172,338.10/310,795,831.95 = 86,016,037.30/x
  3. Step 3: Cross multiply
    207,172,338.10x = 310,795,831.95 × 86,016,037.30
  4. Step 4: Simplify right side
    207,172,338.10x = 26,733,425,873,695,728
  5. Step 5: Solve for x
    x = 26,733,425,873,695,728/207,172,338.10
  6. Step 6: Final answer
    x = 129,039,552.86

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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.