Home / 728,295,780.60-1,092,443,670.90-720,643,030.20

Finding the Fourth Proportional to 728,295,780.60, 1,092,443,670.90 and 720,643,030.20

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Solution

The fourth proportional to 728,295,780.60, 1,092,443,670.90 and 720,643,030.20 is: 1,080,964,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,295,780.60 : 1,092,443,670.90 = 720,643,030.20 : x
  2. Step 2: Convert to fraction form
    728,295,780.60/1,092,443,670.90 = 720,643,030.20/x
  3. Step 3: Cross multiply
    728,295,780.60x = 1,092,443,670.90 × 720,643,030.20
  4. Step 4: Simplify right side
    728,295,780.60x = 787,261,917,320,187,648
  5. Step 5: Solve for x
    x = 787,261,917,320,187,648/728,295,780.60
  6. Step 6: Final answer
    x = 1,080,964,545.30

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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.