Home / 221,624,481.28-305,841,850.02-121,153,355.10

Finding the Fourth Proportional to 221,624,481.28, 305,841,850.02 and 121,153,355.10

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Solution

The fourth proportional to 221,624,481.28, 305,841,850.02 and 121,153,355.10 is: 167,191,666.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,624,481.28 : 305,841,850.02 = 121,153,355.10 : x
  2. Step 2: Convert to fraction form
    221,624,481.28/305,841,850.02 = 121,153,355.10/x
  3. Step 3: Cross multiply
    221,624,481.28x = 305,841,850.02 × 121,153,355.10
  4. Step 4: Simplify right side
    221,624,481.28x = 37,053,766,259,914,000
  5. Step 5: Solve for x
    x = 37,053,766,259,914,000/221,624,481.28
  6. Step 6: Final answer
    x = 167,191,666.04

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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.