Home / 99,508,883,125.20-136,591,298,175.66-87,978,739,189.20

Finding the Fourth Proportional to 99,508,883,125.20, 136,591,298,175.66 and 87,978,739,189.20

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Solution

The fourth proportional to 99,508,883,125.20, 136,591,298,175.66 and 87,978,739,189.20 is: 120,764,396,306.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,508,883,125.20 : 136,591,298,175.66 = 87,978,739,189.20 : x
  2. Step 2: Convert to fraction form
    99,508,883,125.20/136,591,298,175.66 = 87,978,739,189.20/x
  3. Step 3: Cross multiply
    99,508,883,125.20x = 136,591,298,175.66 × 87,978,739,189.20
  4. Step 4: Simplify right side
    99,508,883,125.20x = 12,017,130,197,710,641,561,600
  5. Step 5: Solve for x
    x = 12,017,130,197,710,641,561,600/99,508,883,125.20
  6. Step 6: Final answer
    x = 120,764,396,306.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.