Home / 513,737,901.15-708,958,308.29-278,788,561.29

Finding the Fourth Proportional to 513,737,901.15, 708,958,308.29 and 278,788,561.29

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Solution

The fourth proportional to 513,737,901.15, 708,958,308.29 and 278,788,561.29 is: 384,728,217.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,737,901.15 : 708,958,308.29 = 278,788,561.29 : x
  2. Step 2: Convert to fraction form
    513,737,901.15/708,958,308.29 = 278,788,561.29/x
  3. Step 3: Cross multiply
    513,737,901.15x = 708,958,308.29 × 278,788,561.29
  4. Step 4: Simplify right side
    513,737,901.15x = 197,649,466,781,367,456
  5. Step 5: Solve for x
    x = 197,649,466,781,367,456/513,737,901.15
  6. Step 6: Final answer
    x = 384,728,217.13

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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.