Home / 28,002,167.40-42,003,251.10-7,807,409.40

Finding the Fourth Proportional to 28,002,167.40, 42,003,251.10 and 7,807,409.40

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Solution

The fourth proportional to 28,002,167.40, 42,003,251.10 and 7,807,409.40 is: 11,711,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,002,167.40 : 42,003,251.10 = 7,807,409.40 : x
  2. Step 2: Convert to fraction form
    28,002,167.40/42,003,251.10 = 7,807,409.40/x
  3. Step 3: Cross multiply
    28,002,167.40x = 42,003,251.10 × 7,807,409.40
  4. Step 4: Simplify right side
    28,002,167.40x = 327,936,577,468,700.38
  5. Step 5: Solve for x
    x = 327,936,577,468,700.38/28,002,167.40
  6. Step 6: Final answer
    x = 11,711,114.10

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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.