Home / 28,411,615.72-42,618,945.05-8,979,363.10

Finding the Fourth Proportional to 28,411,615.72, 42,618,945.05 and 8,979,363.10

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Solution

The fourth proportional to 28,411,615.72, 42,618,945.05 and 8,979,363.10 is: 13,469,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,411,615.72 : 42,618,945.05 = 8,979,363.10 : x
  2. Step 2: Convert to fraction form
    28,411,615.72/42,618,945.05 = 8,979,363.10/x
  3. Step 3: Cross multiply
    28,411,615.72x = 42,618,945.05 × 8,979,363.10
  4. Step 4: Simplify right side
    28,411,615.72x = 382,690,982,584,947.12
  5. Step 5: Solve for x
    x = 382,690,982,584,947.12/28,411,615.72
  6. Step 6: Final answer
    x = 13,469,525.50

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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.