Home / 498,968,133.60-748,395,020.88-130,538,640

Finding the Fourth Proportional to 498,968,133.60, 748,395,020.88 and 130,538,640

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Solution

The fourth proportional to 498,968,133.60, 748,395,020.88 and 130,538,640 is: 195,793,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,968,133.60 : 748,395,020.88 = 130,538,640 : x
  2. Step 2: Convert to fraction form
    498,968,133.60/748,395,020.88 = 130,538,640/x
  3. Step 3: Cross multiply
    498,968,133.60x = 748,395,020.88 × 130,538,640
  4. Step 4: Simplify right side
    498,968,133.60x = 97,694,468,208,446,800
  5. Step 5: Solve for x
    x = 97,694,468,208,446,800/498,968,133.60
  6. Step 6: Final answer
    x = 195,793,000.85

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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.