Home / 485,423,175.18-728,148,329.24-157,898,689.87

Finding the Fourth Proportional to 485,423,175.18, 728,148,329.24 and 157,898,689.87

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Solution

The fourth proportional to 485,423,175.18, 728,148,329.24 and 157,898,689.87 is: 236,852,447.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,423,175.18 : 728,148,329.24 = 157,898,689.87 : x
  2. Step 2: Convert to fraction form
    485,423,175.18/728,148,329.24 = 157,898,689.87/x
  3. Step 3: Cross multiply
    485,423,175.18x = 728,148,329.24 × 157,898,689.87
  4. Step 4: Simplify right side
    485,423,175.18x = 114,973,667,218,025,424
  5. Step 5: Solve for x
    x = 114,973,667,218,025,424/485,423,175.18
  6. Step 6: Final answer
    x = 236,852,447.71

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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.