Home / 20,791,013.40-31,188,658.10-7,848,065.93

Finding the Fourth Proportional to 20,791,013.40, 31,188,658.10 and 7,848,065.93

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Solution

The fourth proportional to 20,791,013.40, 31,188,658.10 and 7,848,065.93 is: 11,772,905.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,791,013.40 : 31,188,658.10 = 7,848,065.93 : x
  2. Step 2: Convert to fraction form
    20,791,013.40/31,188,658.10 = 7,848,065.93/x
  3. Step 3: Cross multiply
    20,791,013.40x = 31,188,658.10 × 7,848,065.93
  4. Step 4: Simplify right side
    20,791,013.40x = 244,770,644,841,844.91
  5. Step 5: Solve for x
    x = 244,770,644,841,844.91/20,791,013.40
  6. Step 6: Final answer
    x = 11,772,905.92

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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.