Home / 71,318,007.60-98,419,213.53-40,384,204.80

Finding the Fourth Proportional to 71,318,007.60, 98,419,213.53 and 40,384,204.80

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Solution

The fourth proportional to 71,318,007.60, 98,419,213.53 and 40,384,204.80 is: 55,730,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,318,007.60 : 98,419,213.53 = 40,384,204.80 : x
  2. Step 2: Convert to fraction form
    71,318,007.60/98,419,213.53 = 40,384,204.80/x
  3. Step 3: Cross multiply
    71,318,007.60x = 98,419,213.53 × 40,384,204.80
  4. Step 4: Simplify right side
    71,318,007.60x = 3,974,581,675,450,450.50
  5. Step 5: Solve for x
    x = 3,974,581,675,450,450.50/71,318,007.60
  6. Step 6: Final answer
    x = 55,730,408.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.