Home / 87,366,851.40-131,050,277.10-85,666,240.20

Finding the Fourth Proportional to 87,366,851.40, 131,050,277.10 and 85,666,240.20

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Solution

The fourth proportional to 87,366,851.40, 131,050,277.10 and 85,666,240.20 is: 128,499,360.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,366,851.40 : 131,050,277.10 = 85,666,240.20 : x
  2. Step 2: Convert to fraction form
    87,366,851.40/131,050,277.10 = 85,666,240.20/x
  3. Step 3: Cross multiply
    87,366,851.40x = 131,050,277.10 × 85,666,240.20
  4. Step 4: Simplify right side
    87,366,851.40x = 11,226,584,516,325,160
  5. Step 5: Solve for x
    x = 11,226,584,516,325,160/87,366,851.40
  6. Step 6: Final answer
    x = 128,499,360.30

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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.