Home / 265,455,171.15-398,184,016.13-81,222,353.43

Finding the Fourth Proportional to 265,455,171.15, 398,184,016.13 and 81,222,353.43

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Solution

The fourth proportional to 265,455,171.15, 398,184,016.13 and 81,222,353.43 is: 121,833,915.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,455,171.15 : 398,184,016.13 = 81,222,353.43 : x
  2. Step 2: Convert to fraction form
    265,455,171.15/398,184,016.13 = 81,222,353.43/x
  3. Step 3: Cross multiply
    265,455,171.15x = 398,184,016.13 × 81,222,353.43
  4. Step 4: Simplify right side
    265,455,171.15x = 32,341,442,888,287,684
  5. Step 5: Solve for x
    x = 32,341,442,888,287,684/265,455,171.15
  6. Step 6: Final answer
    x = 121,833,915.49

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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.