Home / 42,857,149.95-64,287,058.11-20,392,064.52

Finding the Fourth Proportional to 42,857,149.95, 64,287,058.11 and 20,392,064.52

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Solution

The fourth proportional to 42,857,149.95, 64,287,058.11 and 20,392,064.52 is: 30,588,731.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,857,149.95 : 64,287,058.11 = 20,392,064.52 : x
  2. Step 2: Convert to fraction form
    42,857,149.95/64,287,058.11 = 20,392,064.52/x
  3. Step 3: Cross multiply
    42,857,149.95x = 64,287,058.11 × 20,392,064.52
  4. Step 4: Simplify right side
    42,857,149.95x = 1,310,945,836,780,109.25
  5. Step 5: Solve for x
    x = 1,310,945,836,780,109.25/42,857,149.95
  6. Step 6: Final answer
    x = 30,588,731.13

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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.