Home / 85,536,373.20-128,257,320.60-27,999,027.60

Finding the Fourth Proportional to 85,536,373.20, 128,257,320.60 and 27,999,027.60

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Solution

The fourth proportional to 85,536,373.20, 128,257,320.60 and 27,999,027.60 is: 41,983,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,373.20 : 128,257,320.60 = 27,999,027.60 : x
  2. Step 2: Convert to fraction form
    85,536,373.20/128,257,320.60 = 27,999,027.60/x
  3. Step 3: Cross multiply
    85,536,373.20x = 128,257,320.60 × 27,999,027.60
  4. Step 4: Simplify right side
    85,536,373.20x = 3,591,080,259,381,448.50
  5. Step 5: Solve for x
    x = 3,591,080,259,381,448.50/85,536,373.20
  6. Step 6: Final answer
    x = 41,983,078.37

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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.