Home / 85,209,729.20-127,814,593.80-27,703,876.40

Finding the Fourth Proportional to 85,209,729.20, 127,814,593.80 and 27,703,876.40

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Solution

The fourth proportional to 85,209,729.20, 127,814,593.80 and 27,703,876.40 is: 41,555,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,209,729.20 : 127,814,593.80 = 27,703,876.40 : x
  2. Step 2: Convert to fraction form
    85,209,729.20/127,814,593.80 = 27,703,876.40/x
  3. Step 3: Cross multiply
    85,209,729.20x = 127,814,593.80 × 27,703,876.40
  4. Step 4: Simplify right side
    85,209,729.20x = 3,540,959,708,751,406
  5. Step 5: Solve for x
    x = 3,540,959,708,751,406/85,209,729.20
  6. Step 6: Final answer
    x = 41,555,814.60

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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.