Home / 791,448,130.61-1,187,172,232.83-542,207,616.02

Finding the Fourth Proportional to 791,448,130.61, 1,187,172,232.83 and 542,207,616.02

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Solution

The fourth proportional to 791,448,130.61, 1,187,172,232.83 and 542,207,616.02 is: 813,311,449.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,448,130.61 : 1,187,172,232.83 = 542,207,616.02 : x
  2. Step 2: Convert to fraction form
    791,448,130.61/1,187,172,232.83 = 542,207,616.02/x
  3. Step 3: Cross multiply
    791,448,130.61x = 1,187,172,232.83 × 542,207,616.02
  4. Step 4: Simplify right side
    791,448,130.61x = 643,693,826,167,894,656
  5. Step 5: Solve for x
    x = 643,693,826,167,894,656/791,448,130.61
  6. Step 6: Final answer
    x = 813,311,449.32

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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.