Home / 521,625,998.80-782,438,998.20-249,528,206.80

Finding the Fourth Proportional to 521,625,998.80, 782,438,998.20 and 249,528,206.80

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Solution

The fourth proportional to 521,625,998.80, 782,438,998.20 and 249,528,206.80 is: 374,292,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,625,998.80 : 782,438,998.20 = 249,528,206.80 : x
  2. Step 2: Convert to fraction form
    521,625,998.80/782,438,998.20 = 249,528,206.80/x
  3. Step 3: Cross multiply
    521,625,998.80x = 782,438,998.20 × 249,528,206.80
  4. Step 4: Simplify right side
    521,625,998.80x = 195,240,600,151,234,464
  5. Step 5: Solve for x
    x = 195,240,600,151,234,464/521,625,998.80
  6. Step 6: Final answer
    x = 374,292,310.20

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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.