Home / 86,933,998.20-130,400,997.30-39,158,254.20

Finding the Fourth Proportional to 86,933,998.20, 130,400,997.30 and 39,158,254.20

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Solution

The fourth proportional to 86,933,998.20, 130,400,997.30 and 39,158,254.20 is: 58,737,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,933,998.20 : 130,400,997.30 = 39,158,254.20 : x
  2. Step 2: Convert to fraction form
    86,933,998.20/130,400,997.30 = 39,158,254.20/x
  3. Step 3: Cross multiply
    86,933,998.20x = 130,400,997.30 × 39,158,254.20
  4. Step 4: Simplify right side
    86,933,998.20x = 5,106,275,400,206,914
  5. Step 5: Solve for x
    x = 5,106,275,400,206,914/86,933,998.20
  6. Step 6: Final answer
    x = 58,737,381.30

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Double scale
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Similar ratio
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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.