Home / 86,229,940.40-129,344,910.60-43,105,799.60

Finding the Fourth Proportional to 86,229,940.40, 129,344,910.60 and 43,105,799.60

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Solution

The fourth proportional to 86,229,940.40, 129,344,910.60 and 43,105,799.60 is: 64,658,699.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,229,940.40 : 129,344,910.60 = 43,105,799.60 : x
  2. Step 2: Convert to fraction form
    86,229,940.40/129,344,910.60 = 43,105,799.60/x
  3. Step 3: Cross multiply
    86,229,940.40x = 129,344,910.60 × 43,105,799.60
  4. Step 4: Simplify right side
    86,229,940.40x = 5,575,515,795,603,516
  5. Step 5: Solve for x
    x = 5,575,515,795,603,516/86,229,940.40
  6. Step 6: Final answer
    x = 64,658,699.40

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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.