Home / 28,411,542.48-42,618,835.05-8,979,290.24

Finding the Fourth Proportional to 28,411,542.48, 42,618,835.05 and 8,979,290.24

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Solution

The fourth proportional to 28,411,542.48, 42,618,835.05 and 8,979,290.24 is: 13,469,416.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,411,542.48 : 42,618,835.05 = 8,979,290.24 : x
  2. Step 2: Convert to fraction form
    28,411,542.48/42,618,835.05 = 8,979,290.24/x
  3. Step 3: Cross multiply
    28,411,542.48x = 42,618,835.05 × 8,979,290.24
  4. Step 4: Simplify right side
    28,411,542.48x = 382,686,889,391,540.69
  5. Step 5: Solve for x
    x = 382,686,889,391,540.69/28,411,542.48
  6. Step 6: Final answer
    x = 13,469,416.16

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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.