Home / 86,039,750.40-129,059,625.60-76,633,900.80

Finding the Fourth Proportional to 86,039,750.40, 129,059,625.60 and 76,633,900.80

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Solution

The fourth proportional to 86,039,750.40, 129,059,625.60 and 76,633,900.80 is: 114,950,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,039,750.40 : 129,059,625.60 = 76,633,900.80 : x
  2. Step 2: Convert to fraction form
    86,039,750.40/129,059,625.60 = 76,633,900.80/x
  3. Step 3: Cross multiply
    86,039,750.40x = 129,059,625.60 × 76,633,900.80
  4. Step 4: Simplify right side
    86,039,750.40x = 9,890,342,545,515,540
  5. Step 5: Solve for x
    x = 9,890,342,545,515,540/86,039,750.40
  6. Step 6: Final answer
    x = 114,950,851.20

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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.