Home / 91,818,008.20-137,727,012.30-79,860,585.70

Finding the Fourth Proportional to 91,818,008.20, 137,727,012.30 and 79,860,585.70

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Solution

The fourth proportional to 91,818,008.20, 137,727,012.30 and 79,860,585.70 is: 119,790,878.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,818,008.20 : 137,727,012.30 = 79,860,585.70 : x
  2. Step 2: Convert to fraction form
    91,818,008.20/137,727,012.30 = 79,860,585.70/x
  3. Step 3: Cross multiply
    91,818,008.20x = 137,727,012.30 × 79,860,585.70
  4. Step 4: Simplify right side
    91,818,008.20x = 10,998,959,868,989,106
  5. Step 5: Solve for x
    x = 10,998,959,868,989,106/91,818,008.20
  6. Step 6: Final answer
    x = 119,790,878.55

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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.