Home / 87,485,070.15-120,731,176.53-47,795,171.60

Finding the Fourth Proportional to 87,485,070.15, 120,731,176.53 and 47,795,171.60

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Solution

The fourth proportional to 87,485,070.15, 120,731,176.53 and 47,795,171.60 is: 65,958,309.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,485,070.15 : 120,731,176.53 = 47,795,171.60 : x
  2. Step 2: Convert to fraction form
    87,485,070.15/120,731,176.53 = 47,795,171.60/x
  3. Step 3: Cross multiply
    87,485,070.15x = 120,731,176.53 × 47,795,171.60
  4. Step 4: Simplify right side
    87,485,070.15x = 5,770,367,299,117,587
  5. Step 5: Solve for x
    x = 5,770,367,299,117,587/87,485,070.15
  6. Step 6: Final answer
    x = 65,958,309.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.