Home / 30,813,979.90-42,522,769.40-17,062,648.78

Finding the Fourth Proportional to 30,813,979.90, 42,522,769.40 and 17,062,648.78

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Solution

The fourth proportional to 30,813,979.90, 42,522,769.40 and 17,062,648.78 is: 23,546,165.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,813,979.90 : 42,522,769.40 = 17,062,648.78 : x
  2. Step 2: Convert to fraction form
    30,813,979.90/42,522,769.40 = 17,062,648.78/x
  3. Step 3: Cross multiply
    30,813,979.90x = 42,522,769.40 × 17,062,648.78
  4. Step 4: Simplify right side
    30,813,979.90x = 725,551,079,425,131.38
  5. Step 5: Solve for x
    x = 725,551,079,425,131.38/30,813,979.90
  6. Step 6: Final answer
    x = 23,546,165.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.