Home / 390,141,132.36-584,802,042.60-131,266,478.64

Finding the Fourth Proportional to 390,141,132.36, 584,802,042.60 and 131,266,478.64

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Solution

The fourth proportional to 390,141,132.36, 584,802,042.60 and 131,266,478.64 is: 196,761,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,141,132.36 : 584,802,042.60 = 131,266,478.64 : x
  2. Step 2: Convert to fraction form
    390,141,132.36/584,802,042.60 = 131,266,478.64/x
  3. Step 3: Cross multiply
    390,141,132.36x = 584,802,042.60 × 131,266,478.64
  4. Step 4: Simplify right side
    390,141,132.36x = 76,764,904,833,581,280
  5. Step 5: Solve for x
    x = 76,764,904,833,581,280/390,141,132.36
  6. Step 6: Final answer
    x = 196,761,885.55

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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.