Home / 485,336,663.28-726,849,400.73-309,916,335.96

Finding the Fourth Proportional to 485,336,663.28, 726,849,400.73 and 309,916,335.96

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Solution

The fourth proportional to 485,336,663.28, 726,849,400.73 and 309,916,335.96 is: 464,136,588.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,336,663.28 : 726,849,400.73 = 309,916,335.96 : x
  2. Step 2: Convert to fraction form
    485,336,663.28/726,849,400.73 = 309,916,335.96/x
  3. Step 3: Cross multiply
    485,336,663.28x = 726,849,400.73 × 309,916,335.96
  4. Step 4: Simplify right side
    485,336,663.28x = 225,262,503,067,413,760
  5. Step 5: Solve for x
    x = 225,262,503,067,413,760/485,336,663.28
  6. Step 6: Final answer
    x = 464,136,588.29

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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.