Home / 68,103,416.80-102,155,125.20-45,310,405.60

Finding the Fourth Proportional to 68,103,416.80, 102,155,125.20 and 45,310,405.60

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Solution

The fourth proportional to 68,103,416.80, 102,155,125.20 and 45,310,405.60 is: 67,965,608.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,103,416.80 : 102,155,125.20 = 45,310,405.60 : x
  2. Step 2: Convert to fraction form
    68,103,416.80/102,155,125.20 = 45,310,405.60/x
  3. Step 3: Cross multiply
    68,103,416.80x = 102,155,125.20 × 45,310,405.60
  4. Step 4: Simplify right side
    68,103,416.80x = 4,628,690,156,930,781
  5. Step 5: Solve for x
    x = 4,628,690,156,930,781/68,103,416.80
  6. Step 6: Final answer
    x = 67,965,608.40

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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.