Home / 218,223,832.32-327,299,253.12-80,020,880.64

Finding the Fourth Proportional to 218,223,832.32, 327,299,253.12 and 80,020,880.64

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Solution

The fourth proportional to 218,223,832.32, 327,299,253.12 and 80,020,880.64 is: 120,017,938.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,223,832.32 : 327,299,253.12 = 80,020,880.64 : x
  2. Step 2: Convert to fraction form
    218,223,832.32/327,299,253.12 = 80,020,880.64/x
  3. Step 3: Cross multiply
    218,223,832.32x = 327,299,253.12 × 80,020,880.64
  4. Step 4: Simplify right side
    218,223,832.32x = 26,190,774,467,476,668
  5. Step 5: Solve for x
    x = 26,190,774,467,476,668/218,223,832.32
  6. Step 6: Final answer
    x = 120,017,938.41

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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.