Home / 485,825,377.74-728,152,575.24-223,147,451.28

Finding the Fourth Proportional to 485,825,377.74, 728,152,575.24 and 223,147,451.28

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Solution

The fourth proportional to 485,825,377.74, 728,152,575.24 and 223,147,451.28 is: 334,452,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,825,377.74 : 728,152,575.24 = 223,147,451.28 : x
  2. Step 2: Convert to fraction form
    485,825,377.74/728,152,575.24 = 223,147,451.28/x
  3. Step 3: Cross multiply
    485,825,377.74x = 728,152,575.24 × 223,147,451.28
  4. Step 4: Simplify right side
    485,825,377.74x = 162,485,391,307,774,432
  5. Step 5: Solve for x
    x = 162,485,391,307,774,432/485,825,377.74
  6. Step 6: Final answer
    x = 334,452,251.27

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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.