Home / 42,923,531.45-64,385,686.40-12,218,098.73

Finding the Fourth Proportional to 42,923,531.45, 64,385,686.40 and 12,218,098.73

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Solution

The fourth proportional to 42,923,531.45, 64,385,686.40 and 12,218,098.73 is: 18,327,258.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,923,531.45 : 64,385,686.40 = 12,218,098.73 : x
  2. Step 2: Convert to fraction form
    42,923,531.45/64,385,686.40 = 12,218,098.73/x
  3. Step 3: Cross multiply
    42,923,531.45x = 64,385,686.40 × 12,218,098.73
  4. Step 4: Simplify right side
    42,923,531.45x = 786,670,673,234,018.25
  5. Step 5: Solve for x
    x = 786,670,673,234,018.25/42,923,531.45
  6. Step 6: Final answer
    x = 18,327,258.89

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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.