Home / 388,373,055.99-582,564,632.36-129,588,276.22

Finding the Fourth Proportional to 388,373,055.99, 582,564,632.36 and 129,588,276.22

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Solution

The fourth proportional to 388,373,055.99, 582,564,632.36 and 129,588,276.22 is: 194,384,098.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,373,055.99 : 582,564,632.36 = 129,588,276.22 : x
  2. Step 2: Convert to fraction form
    388,373,055.99/582,564,632.36 = 129,588,276.22/x
  3. Step 3: Cross multiply
    388,373,055.99x = 582,564,632.36 × 129,588,276.22
  4. Step 4: Simplify right side
    388,373,055.99x = 75,493,546,497,085,680
  5. Step 5: Solve for x
    x = 75,493,546,497,085,680/388,373,055.99
  6. Step 6: Final answer
    x = 194,384,098.83

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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.