Home / 133,038,287.20-199,445,456.40-69,212,879.20

Finding the Fourth Proportional to 133,038,287.20, 199,445,456.40 and 69,212,879.20

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Solution

The fourth proportional to 133,038,287.20, 199,445,456.40 and 69,212,879.20 is: 103,761,064.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,038,287.20 : 199,445,456.40 = 69,212,879.20 : x
  2. Step 2: Convert to fraction form
    133,038,287.20/199,445,456.40 = 69,212,879.20/x
  3. Step 3: Cross multiply
    133,038,287.20x = 199,445,456.40 × 69,212,879.20
  4. Step 4: Simplify right side
    133,038,287.20x = 13,804,194,280,802,068
  5. Step 5: Solve for x
    x = 13,804,194,280,802,068/133,038,287.20
  6. Step 6: Final answer
    x = 103,761,064.36

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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.