Home / 20,916,002.55-31,290,023.03-18,107,311.35

Finding the Fourth Proportional to 20,916,002.55, 31,290,023.03 and 18,107,311.35

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Solution

The fourth proportional to 20,916,002.55, 31,290,023.03 and 18,107,311.35 is: 27,088,263.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916,002.55 : 31,290,023.03 = 18,107,311.35 : x
  2. Step 2: Convert to fraction form
    20,916,002.55/31,290,023.03 = 18,107,311.35/x
  3. Step 3: Cross multiply
    20,916,002.55x = 31,290,023.03 × 18,107,311.35
  4. Step 4: Simplify right side
    20,916,002.55x = 566,578,189,062,343.88
  5. Step 5: Solve for x
    x = 566,578,189,062,343.88/20,916,002.55
  6. Step 6: Final answer
    x = 27,088,263.53

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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.