Home / 72,771,566.40-109,157,349.60-36,385,572.60

Finding the Fourth Proportional to 72,771,566.40, 109,157,349.60 and 36,385,572.60

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Solution

The fourth proportional to 72,771,566.40, 109,157,349.60 and 36,385,572.60 is: 54,578,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,771,566.40 : 109,157,349.60 = 36,385,572.60 : x
  2. Step 2: Convert to fraction form
    72,771,566.40/109,157,349.60 = 36,385,572.60/x
  3. Step 3: Cross multiply
    72,771,566.40x = 109,157,349.60 × 36,385,572.60
  4. Step 4: Simplify right side
    72,771,566.40x = 3,971,752,668,694,381
  5. Step 5: Solve for x
    x = 3,971,752,668,694,381/72,771,566.40
  6. Step 6: Final answer
    x = 54,578,358.90

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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.