Home / 54,127,639.13-81,231,812.46-21,779,816.90

Finding the Fourth Proportional to 54,127,639.13, 81,231,812.46 and 21,779,816.90

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Solution

The fourth proportional to 54,127,639.13, 81,231,812.46 and 21,779,816.90 is: 32,685,962.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,127,639.13 : 81,231,812.46 = 21,779,816.90 : x
  2. Step 2: Convert to fraction form
    54,127,639.13/81,231,812.46 = 21,779,816.90/x
  3. Step 3: Cross multiply
    54,127,639.13x = 81,231,812.46 × 21,779,816.90
  4. Step 4: Simplify right side
    54,127,639.13x = 1,769,214,001,427,779.25
  5. Step 5: Solve for x
    x = 1,769,214,001,427,779.25/54,127,639.13
  6. Step 6: Final answer
    x = 32,685,962.85

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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.