Home / 42,218,864.08-63,369,146.74-20,374,620.73

Finding the Fourth Proportional to 42,218,864.08, 63,369,146.74 and 20,374,620.73

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Solution

The fourth proportional to 42,218,864.08, 63,369,146.74 and 20,374,620.73 is: 30,581,645.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,218,864.08 : 63,369,146.74 = 20,374,620.73 : x
  2. Step 2: Convert to fraction form
    42,218,864.08/63,369,146.74 = 20,374,620.73/x
  3. Step 3: Cross multiply
    42,218,864.08x = 63,369,146.74 × 20,374,620.73
  4. Step 4: Simplify right side
    42,218,864.08x = 1,291,122,330,811,216
  5. Step 5: Solve for x
    x = 1,291,122,330,811,216/42,218,864.08
  6. Step 6: Final answer
    x = 30,581,645.41

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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.