Home / 43,720,951.20-65,581,426.80-20,996,368.80

Finding the Fourth Proportional to 43,720,951.20, 65,581,426.80 and 20,996,368.80

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Solution

The fourth proportional to 43,720,951.20, 65,581,426.80 and 20,996,368.80 is: 31,494,553.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,720,951.20 : 65,581,426.80 = 20,996,368.80 : x
  2. Step 2: Convert to fraction form
    43,720,951.20/65,581,426.80 = 20,996,368.80/x
  3. Step 3: Cross multiply
    43,720,951.20x = 65,581,426.80 × 20,996,368.80
  4. Step 4: Simplify right side
    43,720,951.20x = 1,376,971,823,523,003.75
  5. Step 5: Solve for x
    x = 1,376,971,823,523,003.75/43,720,951.20
  6. Step 6: Final answer
    x = 31,494,553.20

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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.