Home / 28,721,604.10-43,103,401.35-20,218,548.10

Finding the Fourth Proportional to 28,721,604.10, 43,103,401.35 and 20,218,548.10

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Solution

The fourth proportional to 28,721,604.10, 43,103,401.35 and 20,218,548.10 is: 30,342,601.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721,604.10 : 43,103,401.35 = 20,218,548.10 : x
  2. Step 2: Convert to fraction form
    28,721,604.10/43,103,401.35 = 20,218,548.10/x
  3. Step 3: Cross multiply
    28,721,604.10x = 43,103,401.35 × 20,218,548.10
  4. Step 4: Simplify right side
    28,721,604.10x = 871,488,193,468,580
  5. Step 5: Solve for x
    x = 871,488,193,468,580/28,721,604.10
  6. Step 6: Final answer
    x = 30,342,601.70

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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.