Home / 28,083,614.20-42,125,421.30-11,906,812.60

Finding the Fourth Proportional to 28,083,614.20, 42,125,421.30 and 11,906,812.60

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Solution

The fourth proportional to 28,083,614.20, 42,125,421.30 and 11,906,812.60 is: 17,860,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,614.20 : 42,125,421.30 = 11,906,812.60 : x
  2. Step 2: Convert to fraction form
    28,083,614.20/42,125,421.30 = 11,906,812.60/x
  3. Step 3: Cross multiply
    28,083,614.20x = 42,125,421.30 × 11,906,812.60
  4. Step 4: Simplify right side
    28,083,614.20x = 501,579,497,115,148.31
  5. Step 5: Solve for x
    x = 501,579,497,115,148.31/28,083,614.20
  6. Step 6: Final answer
    x = 17,860,218.90

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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.