Home / 71,318,008.60-98,419,214.91-40,384,205.80

Finding the Fourth Proportional to 71,318,008.60, 98,419,214.91 and 40,384,205.80

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Solution

The fourth proportional to 71,318,008.60, 98,419,214.91 and 40,384,205.80 is: 55,730,409.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,318,008.60 : 98,419,214.91 = 40,384,205.80 : x
  2. Step 2: Convert to fraction form
    71,318,008.60/98,419,214.91 = 40,384,205.80/x
  3. Step 3: Cross multiply
    71,318,008.60x = 98,419,214.91 × 40,384,205.80
  4. Step 4: Simplify right side
    71,318,008.60x = 3,974,581,829,599,868
  5. Step 5: Solve for x
    x = 3,974,581,829,599,868/71,318,008.60
  6. Step 6: Final answer
    x = 55,730,409.58

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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.