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Finding the Fourth Proportional to 18,972,023.04, 28,458,073.44 and 8,881,729.92

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Solution

The fourth proportional to 18,972,023.04, 28,458,073.44 and 8,881,729.92 is: 13,322,613.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972,023.04 : 28,458,073.44 = 8,881,729.92 : x
  2. Step 2: Convert to fraction form
    18,972,023.04/28,458,073.44 = 8,881,729.92/x
  3. Step 3: Cross multiply
    18,972,023.04x = 28,458,073.44 × 8,881,729.92
  4. Step 4: Simplify right side
    18,972,023.04x = 252,756,922,337,605.34
  5. Step 5: Solve for x
    x = 252,756,922,337,605.34/18,972,023.04
  6. Step 6: Final answer
    x = 13,322,613.08

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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.