Home / 86,015,918.80-129,023,878.20-25,431,644.80

Finding the Fourth Proportional to 86,015,918.80, 129,023,878.20 and 25,431,644.80

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Solution

The fourth proportional to 86,015,918.80, 129,023,878.20 and 25,431,644.80 is: 38,147,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,015,918.80 : 129,023,878.20 = 25,431,644.80 : x
  2. Step 2: Convert to fraction form
    86,015,918.80/129,023,878.20 = 25,431,644.80/x
  3. Step 3: Cross multiply
    86,015,918.80x = 129,023,878.20 × 25,431,644.80
  4. Step 4: Simplify right side
    86,015,918.80x = 3,281,289,441,100,863.50
  5. Step 5: Solve for x
    x = 3,281,289,441,100,863.50/86,015,918.80
  6. Step 6: Final answer
    x = 38,147,467.20

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Double scale
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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.