Home / 791,448,134.61-1,187,172,238.83-542,207,620.02

Finding the Fourth Proportional to 791,448,134.61, 1,187,172,238.83 and 542,207,620.02

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Solution

The fourth proportional to 791,448,134.61, 1,187,172,238.83 and 542,207,620.02 is: 813,311,455.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,448,134.61 : 1,187,172,238.83 = 542,207,620.02 : x
  2. Step 2: Convert to fraction form
    791,448,134.61/1,187,172,238.83 = 542,207,620.02/x
  3. Step 3: Cross multiply
    791,448,134.61x = 1,187,172,238.83 × 542,207,620.02
  4. Step 4: Simplify right side
    791,448,134.61x = 643,693,834,169,829,248
  5. Step 5: Solve for x
    x = 643,693,834,169,829,248/791,448,134.61
  6. Step 6: Final answer
    x = 813,311,455.32

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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.