Home / 21,178,481.50-31,781,158.62-9,048,036.34

Finding the Fourth Proportional to 21,178,481.50, 31,781,158.62 and 9,048,036.34

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Solution

The fourth proportional to 21,178,481.50, 31,781,158.62 and 9,048,036.34 is: 13,577,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178,481.50 : 31,781,158.62 = 9,048,036.34 : x
  2. Step 2: Convert to fraction form
    21,178,481.50/31,781,158.62 = 9,048,036.34/x
  3. Step 3: Cross multiply
    21,178,481.50x = 31,781,158.62 × 9,048,036.34
  4. Step 4: Simplify right side
    21,178,481.50x = 287,557,078,121,064.25
  5. Step 5: Solve for x
    x = 287,557,078,121,064.25/21,178,481.50
  6. Step 6: Final answer
    x = 13,577,794.90

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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.