Home / 80,881,313.20-121,321,969.80-60,725,921.20

Finding the Fourth Proportional to 80,881,313.20, 121,321,969.80 and 60,725,921.20

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Solution

The fourth proportional to 80,881,313.20, 121,321,969.80 and 60,725,921.20 is: 91,088,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,881,313.20 : 121,321,969.80 = 60,725,921.20 : x
  2. Step 2: Convert to fraction form
    80,881,313.20/121,321,969.80 = 60,725,921.20/x
  3. Step 3: Cross multiply
    80,881,313.20x = 121,321,969.80 × 60,725,921.20
  4. Step 4: Simplify right side
    80,881,313.20x = 7,367,388,377,903,580
  5. Step 5: Solve for x
    x = 7,367,388,377,903,580/80,881,313.20
  6. Step 6: Final answer
    x = 91,088,881.80

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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.