Home / 85,536,531.20-128,493,753.60-82,324,265.60

Finding the Fourth Proportional to 85,536,531.20, 128,493,753.60 and 82,324,265.60

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Solution

The fourth proportional to 85,536,531.20, 128,493,753.60 and 82,324,265.60 is: 123,668,259.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,531.20 : 128,493,753.60 = 82,324,265.60 : x
  2. Step 2: Convert to fraction form
    85,536,531.20/128,493,753.60 = 82,324,265.60/x
  3. Step 3: Cross multiply
    85,536,531.20x = 128,493,753.60 × 82,324,265.60
  4. Step 4: Simplify right side
    85,536,531.20x = 10,578,153,899,307,354
  5. Step 5: Solve for x
    x = 10,578,153,899,307,354/85,536,531.20
  6. Step 6: Final answer
    x = 123,668,259.06

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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.