Home / 121,395,995.28-167,526,355.37-65,641,282.20

Finding the Fourth Proportional to 121,395,995.28, 167,526,355.37 and 65,641,282.20

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Solution

The fourth proportional to 121,395,995.28, 167,526,355.37 and 65,641,282.20 is: 90,584,905.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,395,995.28 : 167,526,355.37 = 65,641,282.20 : x
  2. Step 2: Convert to fraction form
    121,395,995.28/167,526,355.37 = 65,641,282.20/x
  3. Step 3: Cross multiply
    121,395,995.28x = 167,526,355.37 × 65,641,282.20
  4. Step 4: Simplify right side
    121,395,995.28x = 10,996,644,768,451,450
  5. Step 5: Solve for x
    x = 10,996,644,768,451,450/121,395,995.28
  6. Step 6: Final answer
    x = 90,584,905.57

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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.