Home / 132,144,005.10-198,216,007.65-123,640,949.10

Finding the Fourth Proportional to 132,144,005.10, 198,216,007.65 and 123,640,949.10

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Solution

The fourth proportional to 132,144,005.10, 198,216,007.65 and 123,640,949.10 is: 185,461,423.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,144,005.10 : 198,216,007.65 = 123,640,949.10 : x
  2. Step 2: Convert to fraction form
    132,144,005.10/198,216,007.65 = 123,640,949.10/x
  3. Step 3: Cross multiply
    132,144,005.10x = 198,216,007.65 × 123,640,949.10
  4. Step 4: Simplify right side
    132,144,005.10x = 24,507,615,312,658,860
  5. Step 5: Solve for x
    x = 24,507,615,312,658,860/132,144,005.10
  6. Step 6: Final answer
    x = 185,461,423.65

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Similar ratio
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1.5x scale

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.