Home / 792,021,892.80-1,187,560,447.20-485,533,963.20

Finding the Fourth Proportional to 792,021,892.80, 1,187,560,447.20 and 485,533,963.20

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Solution

The fourth proportional to 792,021,892.80, 1,187,560,447.20 and 485,533,963.20 is: 728,011,353.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,021,892.80 : 1,187,560,447.20 = 485,533,963.20 : x
  2. Step 2: Convert to fraction form
    792,021,892.80/1,187,560,447.20 = 485,533,963.20/x
  3. Step 3: Cross multiply
    792,021,892.80x = 1,187,560,447.20 × 485,533,963.20
  4. Step 4: Simplify right side
    792,021,892.80x = 576,600,930,468,580,352
  5. Step 5: Solve for x
    x = 576,600,930,468,580,352/792,021,892.80
  6. Step 6: Final answer
    x = 728,011,353.87

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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.