Home / 721,515,664.80-1,082,273,497.20-618,203,534.40

Finding the Fourth Proportional to 721,515,664.80, 1,082,273,497.20 and 618,203,534.40

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Solution

The fourth proportional to 721,515,664.80, 1,082,273,497.20 and 618,203,534.40 is: 927,305,301.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,515,664.80 : 1,082,273,497.20 = 618,203,534.40 : x
  2. Step 2: Convert to fraction form
    721,515,664.80/1,082,273,497.20 = 618,203,534.40/x
  3. Step 3: Cross multiply
    721,515,664.80x = 1,082,273,497.20 × 618,203,534.40
  4. Step 4: Simplify right side
    721,515,664.80x = 669,065,301,156,488,448
  5. Step 5: Solve for x
    x = 669,065,301,156,488,448/721,515,664.80
  6. Step 6: Final answer
    x = 927,305,301.60

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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.