Home / 112,687,421.12-155,654,515.80-93,187,079.36

Finding the Fourth Proportional to 112,687,421.12, 155,654,515.80 and 93,187,079.36

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Solution

The fourth proportional to 112,687,421.12, 155,654,515.80 and 93,187,079.36 is: 128,718,800.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,687,421.12 : 155,654,515.80 = 93,187,079.36 : x
  2. Step 2: Convert to fraction form
    112,687,421.12/155,654,515.80 = 93,187,079.36/x
  3. Step 3: Cross multiply
    112,687,421.12x = 155,654,515.80 × 93,187,079.36
  4. Step 4: Simplify right side
    112,687,421.12x = 14,504,989,715,818,704
  5. Step 5: Solve for x
    x = 14,504,989,715,818,704/112,687,421.12
  6. Step 6: Final answer
    x = 128,718,800.84

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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.