Home / 79,135,963.20-118,703,944.80-65,531,073.60

Finding the Fourth Proportional to 79,135,963.20, 118,703,944.80 and 65,531,073.60

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Solution

The fourth proportional to 79,135,963.20, 118,703,944.80 and 65,531,073.60 is: 98,296,610.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,135,963.20 : 118,703,944.80 = 65,531,073.60 : x
  2. Step 2: Convert to fraction form
    79,135,963.20/118,703,944.80 = 65,531,073.60/x
  3. Step 3: Cross multiply
    79,135,963.20x = 118,703,944.80 × 65,531,073.60
  4. Step 4: Simplify right side
    79,135,963.20x = 7,778,796,943,299,137
  5. Step 5: Solve for x
    x = 7,778,796,943,299,137/79,135,963.20
  6. Step 6: Final answer
    x = 98,296,610.40

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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.