Home / 28,420,851.13-42,614,957.82-11,128,805.89

Finding the Fourth Proportional to 28,420,851.13, 42,614,957.82 and 11,128,805.89

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Solution

The fourth proportional to 28,420,851.13, 42,614,957.82 and 11,128,805.89 is: 16,686,818.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,851.13 : 42,614,957.82 = 11,128,805.89 : x
  2. Step 2: Convert to fraction form
    28,420,851.13/42,614,957.82 = 11,128,805.89/x
  3. Step 3: Cross multiply
    28,420,851.13x = 42,614,957.82 × 11,128,805.89
  4. Step 4: Simplify right side
    28,420,851.13x = 474,253,593,524,513.12
  5. Step 5: Solve for x
    x = 474,253,593,524,513.12/28,420,851.13
  6. Step 6: Final answer
    x = 16,686,818.82

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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.