Home / 20,423,999.70-30,635,999.55-18,433,343.70

Finding the Fourth Proportional to 20,423,999.70, 30,635,999.55 and 18,433,343.70

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Solution

The fourth proportional to 20,423,999.70, 30,635,999.55 and 18,433,343.70 is: 27,650,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423,999.70 : 30,635,999.55 = 18,433,343.70 : x
  2. Step 2: Convert to fraction form
    20,423,999.70/30,635,999.55 = 18,433,343.70/x
  3. Step 3: Cross multiply
    20,423,999.70x = 30,635,999.55 × 18,433,343.70
  4. Step 4: Simplify right side
    20,423,999.70x = 564,723,909,298,195.38
  5. Step 5: Solve for x
    x = 564,723,909,298,195.38/20,423,999.70
  6. Step 6: Final answer
    x = 27,650,015.55

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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.