Home / 86,538,688.80-129,619,076.40-52,400,493.60

Finding the Fourth Proportional to 86,538,688.80, 129,619,076.40 and 52,400,493.60

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Solution

The fourth proportional to 86,538,688.80, 129,619,076.40 and 52,400,493.60 is: 78,486,324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,538,688.80 : 129,619,076.40 = 52,400,493.60 : x
  2. Step 2: Convert to fraction form
    86,538,688.80/129,619,076.40 = 52,400,493.60/x
  3. Step 3: Cross multiply
    86,538,688.80x = 129,619,076.40 × 52,400,493.60
  4. Step 4: Simplify right side
    86,538,688.80x = 6,792,103,583,336,112
  5. Step 5: Solve for x
    x = 6,792,103,583,336,112/86,538,688.80
  6. Step 6: Final answer
    x = 78,486,324.18

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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.