Home / 86,017,120.80-129,025,681.20-25,432,846.80

Finding the Fourth Proportional to 86,017,120.80, 129,025,681.20 and 25,432,846.80

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Solution

The fourth proportional to 86,017,120.80, 129,025,681.20 and 25,432,846.80 is: 38,149,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,017,120.80 : 129,025,681.20 = 25,432,846.80 : x
  2. Step 2: Convert to fraction form
    86,017,120.80/129,025,681.20 = 25,432,846.80/x
  3. Step 3: Cross multiply
    86,017,120.80x = 129,025,681.20 × 25,432,846.80
  4. Step 4: Simplify right side
    86,017,120.80x = 3,281,490,383,225,240.50
  5. Step 5: Solve for x
    x = 3,281,490,383,225,240.50/86,017,120.80
  6. Step 6: Final answer
    x = 38,149,270.20

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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.