Home / 20,161,014.70-30,241,522.05-12,098,857.90

Finding the Fourth Proportional to 20,161,014.70, 30,241,522.05 and 12,098,857.90

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Solution

The fourth proportional to 20,161,014.70, 30,241,522.05 and 12,098,857.90 is: 18,148,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161,014.70 : 30,241,522.05 = 12,098,857.90 : x
  2. Step 2: Convert to fraction form
    20,161,014.70/30,241,522.05 = 12,098,857.90/x
  3. Step 3: Cross multiply
    20,161,014.70x = 30,241,522.05 × 12,098,857.90
  4. Step 4: Simplify right side
    20,161,014.70x = 365,887,877,962,666.69
  5. Step 5: Solve for x
    x = 365,887,877,962,666.69/20,161,014.70
  6. Step 6: Final answer
    x = 18,148,286.85

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1.5x scale

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.