Home / 388,373,062.77-582,564,642.48-129,588,282.95

Finding the Fourth Proportional to 388,373,062.77, 582,564,642.48 and 129,588,282.95

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Solution

The fourth proportional to 388,373,062.77, 582,564,642.48 and 129,588,282.95 is: 194,384,108.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,373,062.77 : 582,564,642.48 = 129,588,282.95 : x
  2. Step 2: Convert to fraction form
    388,373,062.77/582,564,642.48 = 129,588,282.95/x
  3. Step 3: Cross multiply
    388,373,062.77x = 582,564,642.48 × 129,588,282.95
  4. Step 4: Simplify right side
    388,373,062.77x = 75,493,551,723,451,008
  5. Step 5: Solve for x
    x = 75,493,551,723,451,008/388,373,062.77
  6. Step 6: Final answer
    x = 194,384,108.89

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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.