Home / 72,816,802.40-109,151,720.40-36,369,135.20

Finding the Fourth Proportional to 72,816,802.40, 109,151,720.40 and 36,369,135.20

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Solution

The fourth proportional to 72,816,802.40, 109,151,720.40 and 36,369,135.20 is: 54,517,000.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,816,802.40 : 109,151,720.40 = 36,369,135.20 : x
  2. Step 2: Convert to fraction form
    72,816,802.40/109,151,720.40 = 36,369,135.20/x
  3. Step 3: Cross multiply
    72,816,802.40x = 109,151,720.40 × 36,369,135.20
  4. Step 4: Simplify right side
    72,816,802.40x = 3,969,753,676,540,198.50
  5. Step 5: Solve for x
    x = 3,969,753,676,540,198.50/72,816,802.40
  6. Step 6: Final answer
    x = 54,517,000.83

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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.