Home / 791,448,130.94-1,187,172,233.31-542,207,616.35

Finding the Fourth Proportional to 791,448,130.94, 1,187,172,233.31 and 542,207,616.35

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Solution

The fourth proportional to 791,448,130.94, 1,187,172,233.31 and 542,207,616.35 is: 813,311,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,448,130.94 : 1,187,172,233.31 = 542,207,616.35 : x
  2. Step 2: Convert to fraction form
    791,448,130.94/1,187,172,233.31 = 542,207,616.35/x
  3. Step 3: Cross multiply
    791,448,130.94x = 1,187,172,233.31 × 542,207,616.35
  4. Step 4: Simplify right side
    791,448,130.94x = 643,693,826,813,985,280
  5. Step 5: Solve for x
    x = 643,693,826,813,985,280/791,448,130.94
  6. Step 6: Final answer
    x = 813,311,449.80

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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.