Home / 28,017,003.70-42,002,177.55-11,855,365.30

Finding the Fourth Proportional to 28,017,003.70, 42,002,177.55 and 11,855,365.30

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Solution

The fourth proportional to 28,017,003.70, 42,002,177.55 and 11,855,365.30 is: 17,773,176.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017,003.70 : 42,002,177.55 = 11,855,365.30 : x
  2. Step 2: Convert to fraction form
    28,017,003.70/42,002,177.55 = 11,855,365.30/x
  3. Step 3: Cross multiply
    28,017,003.70x = 42,002,177.55 × 11,855,365.30
  4. Step 4: Simplify right side
    28,017,003.70x = 497,951,158,250,709
  5. Step 5: Solve for x
    x = 497,951,158,250,709/28,017,003.70
  6. Step 6: Final answer
    x = 17,773,176.73

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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.