Home / 86,231,146.40-129,346,719.60-43,107,005.60

Finding the Fourth Proportional to 86,231,146.40, 129,346,719.60 and 43,107,005.60

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Solution

The fourth proportional to 86,231,146.40, 129,346,719.60 and 43,107,005.60 is: 64,660,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,231,146.40 : 129,346,719.60 = 43,107,005.60 : x
  2. Step 2: Convert to fraction form
    86,231,146.40/129,346,719.60 = 43,107,005.60/x
  3. Step 3: Cross multiply
    86,231,146.40x = 129,346,719.60 × 43,107,005.60
  4. Step 4: Simplify right side
    86,231,146.40x = 5,575,749,766,138,830
  5. Step 5: Solve for x
    x = 5,575,749,766,138,830/86,231,146.40
  6. Step 6: Final answer
    x = 64,660,508.40

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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.