Home / 9,195,509.92-12,690,197.34-5,121,128.92

Finding the Fourth Proportional to 9,195,509.92, 12,690,197.34 and 5,121,128.92

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Solution

The fourth proportional to 9,195,509.92, 12,690,197.34 and 5,121,128.92 is: 7,067,377.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195,509.92 : 12,690,197.34 = 5,121,128.92 : x
  2. Step 2: Convert to fraction form
    9,195,509.92/12,690,197.34 = 5,121,128.92/x
  3. Step 3: Cross multiply
    9,195,509.92x = 12,690,197.34 × 5,121,128.92
  4. Step 4: Simplify right side
    9,195,509.92x = 64,988,136,598,381.07
  5. Step 5: Solve for x
    x = 64,988,136,598,381.07/9,195,509.92
  6. Step 6: Final answer
    x = 7,067,377.14

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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.