Home / 18,090,531.40-27,127,502.70-7,987,952.20

Finding the Fourth Proportional to 18,090,531.40, 27,127,502.70 and 7,987,952.20

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Solution

The fourth proportional to 18,090,531.40, 27,127,502.70 and 7,987,952.20 is: 11,978,265.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090,531.40 : 27,127,502.70 = 7,987,952.20 : x
  2. Step 2: Convert to fraction form
    18,090,531.40/27,127,502.70 = 7,987,952.20/x
  3. Step 3: Cross multiply
    18,090,531.40x = 27,127,502.70 × 7,987,952.20
  4. Step 4: Simplify right side
    18,090,531.40x = 216,693,194,872,970.94
  5. Step 5: Solve for x
    x = 216,693,194,872,970.94/18,090,531.40
  6. Step 6: Final answer
    x = 11,978,265.87

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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.