Home / 128,007,172.70-176,650,364.21-69,269,832.44

Finding the Fourth Proportional to 128,007,172.70, 176,650,364.21 and 69,269,832.44

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Solution

The fourth proportional to 128,007,172.70, 176,650,364.21 and 69,269,832.44 is: 95,592,620.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,007,172.70 : 176,650,364.21 = 69,269,832.44 : x
  2. Step 2: Convert to fraction form
    128,007,172.70/176,650,364.21 = 69,269,832.44/x
  3. Step 3: Cross multiply
    128,007,172.70x = 176,650,364.21 × 69,269,832.44
  4. Step 4: Simplify right side
    128,007,172.70x = 12,236,541,128,062,074
  5. Step 5: Solve for x
    x = 12,236,541,128,062,074/128,007,172.70
  6. Step 6: Final answer
    x = 95,592,620.87

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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.