Home / 518,545,769.66-715,549,903.15-292,472,295.18

Finding the Fourth Proportional to 518,545,769.66, 715,549,903.15 and 292,472,295.18

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Solution

The fourth proportional to 518,545,769.66, 715,549,903.15 and 292,472,295.18 is: 403,587,368.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,545,769.66 : 715,549,903.15 = 292,472,295.18 : x
  2. Step 2: Convert to fraction form
    518,545,769.66/715,549,903.15 = 292,472,295.18/x
  3. Step 3: Cross multiply
    518,545,769.66x = 715,549,903.15 × 292,472,295.18
  4. Step 4: Simplify right side
    518,545,769.66x = 209,278,522,490,107,200
  5. Step 5: Solve for x
    x = 209,278,522,490,107,200/518,545,769.66
  6. Step 6: Final answer
    x = 403,587,368.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.