Home / 388,101,200.40-582,151,800.60-319,226,446.80

Finding the Fourth Proportional to 388,101,200.40, 582,151,800.60 and 319,226,446.80

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Solution

The fourth proportional to 388,101,200.40, 582,151,800.60 and 319,226,446.80 is: 478,839,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,101,200.40 : 582,151,800.60 = 319,226,446.80 : x
  2. Step 2: Convert to fraction form
    388,101,200.40/582,151,800.60 = 319,226,446.80/x
  3. Step 3: Cross multiply
    388,101,200.40x = 582,151,800.60 × 319,226,446.80
  4. Step 4: Simplify right side
    388,101,200.40x = 185,838,250,803,760,128
  5. Step 5: Solve for x
    x = 185,838,250,803,760,128/388,101,200.40
  6. Step 6: Final answer
    x = 478,839,670.20

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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.