Home / 721,110,621.20-1,082,799,672.60-415,000,605.20

Finding the Fourth Proportional to 721,110,621.20, 1,082,799,672.60 and 415,000,605.20

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Solution

The fourth proportional to 721,110,621.20, 1,082,799,672.60 and 415,000,605.20 is: 623,153,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,110,621.20 : 1,082,799,672.60 = 415,000,605.20 : x
  2. Step 2: Convert to fraction form
    721,110,621.20/1,082,799,672.60 = 415,000,605.20/x
  3. Step 3: Cross multiply
    721,110,621.20x = 1,082,799,672.60 × 415,000,605.20
  4. Step 4: Simplify right side
    721,110,621.20x = 449,362,519,439,361,792
  5. Step 5: Solve for x
    x = 449,362,519,439,361,792/721,110,621.20
  6. Step 6: Final answer
    x = 623,153,377.90

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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.