Home / 90,836,874.60-136,255,311.90-66,443,732.70

Finding the Fourth Proportional to 90,836,874.60, 136,255,311.90 and 66,443,732.70

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Solution

The fourth proportional to 90,836,874.60, 136,255,311.90 and 66,443,732.70 is: 99,665,599.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,836,874.60 : 136,255,311.90 = 66,443,732.70 : x
  2. Step 2: Convert to fraction form
    90,836,874.60/136,255,311.90 = 66,443,732.70/x
  3. Step 3: Cross multiply
    90,836,874.60x = 136,255,311.90 × 66,443,732.70
  4. Step 4: Simplify right side
    90,836,874.60x = 9,053,311,522,838,730
  5. Step 5: Solve for x
    x = 9,053,311,522,838,730/90,836,874.60
  6. Step 6: Final answer
    x = 99,665,599.05

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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.