Home / 42,699,861.20-63,900,492.60-39,116,680.40

Finding the Fourth Proportional to 42,699,861.20, 63,900,492.60 and 39,116,680.40

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Solution

The fourth proportional to 42,699,861.20, 63,900,492.60 and 39,116,680.40 is: 58,538,249.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,699,861.20 : 63,900,492.60 = 39,116,680.40 : x
  2. Step 2: Convert to fraction form
    42,699,861.20/63,900,492.60 = 39,116,680.40/x
  3. Step 3: Cross multiply
    42,699,861.20x = 63,900,492.60 × 39,116,680.40
  4. Step 4: Simplify right side
    42,699,861.20x = 2,499,575,146,436,765
  5. Step 5: Solve for x
    x = 2,499,575,146,436,765/42,699,861.20
  6. Step 6: Final answer
    x = 58,538,249.92

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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.