Home / 86,230,010.40-129,156,058.80-76,656,199.20

Finding the Fourth Proportional to 86,230,010.40, 129,156,058.80 and 76,656,199.20

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Solution

The fourth proportional to 86,230,010.40, 129,156,058.80 and 76,656,199.20 is: 114,816,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,230,010.40 : 129,156,058.80 = 76,656,199.20 : x
  2. Step 2: Convert to fraction form
    86,230,010.40/129,156,058.80 = 76,656,199.20/x
  3. Step 3: Cross multiply
    86,230,010.40x = 129,156,058.80 × 76,656,199.20
  4. Step 4: Simplify right side
    86,230,010.40x = 9,900,612,571,259,714
  5. Step 5: Solve for x
    x = 9,900,612,571,259,714/86,230,010.40
  6. Step 6: Final answer
    x = 114,816,321.20

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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.