Home / 372,649,385.76-514,258,191.72-216,109,305.12

Finding the Fourth Proportional to 372,649,385.76, 514,258,191.72 and 216,109,305.12

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Solution

The fourth proportional to 372,649,385.76, 514,258,191.72 and 216,109,305.12 is: 298,232,023.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,649,385.76 : 514,258,191.72 = 216,109,305.12 : x
  2. Step 2: Convert to fraction form
    372,649,385.76/514,258,191.72 = 216,109,305.12/x
  3. Step 3: Cross multiply
    372,649,385.76x = 514,258,191.72 × 216,109,305.12
  4. Step 4: Simplify right side
    372,649,385.76x = 111,135,980,464,876,944
  5. Step 5: Solve for x
    x = 111,135,980,464,876,944/372,649,385.76
  6. Step 6: Final answer
    x = 298,232,023.75

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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.