Home / 82,969,861.60-124,454,792.40-39,923,140.60

Finding the Fourth Proportional to 82,969,861.60, 124,454,792.40 and 39,923,140.60

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Solution

The fourth proportional to 82,969,861.60, 124,454,792.40 and 39,923,140.60 is: 59,884,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,969,861.60 : 124,454,792.40 = 39,923,140.60 : x
  2. Step 2: Convert to fraction form
    82,969,861.60/124,454,792.40 = 39,923,140.60/x
  3. Step 3: Cross multiply
    82,969,861.60x = 124,454,792.40 × 39,923,140.60
  4. Step 4: Simplify right side
    82,969,861.60x = 4,968,626,175,329,012
  5. Step 5: Solve for x
    x = 4,968,626,175,329,012/82,969,861.60
  6. Step 6: Final answer
    x = 59,884,710.90

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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.