Home / 121,583,481.60-167,780,165.76-66,578,390.40

Finding the Fourth Proportional to 121,583,481.60, 167,780,165.76 and 66,578,390.40

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Solution

The fourth proportional to 121,583,481.60, 167,780,165.76 and 66,578,390.40 is: 91,875,419.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,583,481.60 : 167,780,165.76 = 66,578,390.40 : x
  2. Step 2: Convert to fraction form
    121,583,481.60/167,780,165.76 = 66,578,390.40/x
  3. Step 3: Cross multiply
    121,583,481.60x = 167,780,165.76 × 66,578,390.40
  4. Step 4: Simplify right side
    121,583,481.60x = 11,170,533,377,345,992
  5. Step 5: Solve for x
    x = 11,170,533,377,345,992/121,583,481.60
  6. Step 6: Final answer
    x = 91,875,419.51

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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.