Home / 143,876,689.01-198,549,690.78-77,797,029.14

Finding the Fourth Proportional to 143,876,689.01, 198,549,690.78 and 77,797,029.14

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Solution

The fourth proportional to 143,876,689.01, 198,549,690.78 and 77,797,029.14 is: 107,359,824.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,876,689.01 : 198,549,690.78 = 77,797,029.14 : x
  2. Step 2: Convert to fraction form
    143,876,689.01/198,549,690.78 = 77,797,029.14/x
  3. Step 3: Cross multiply
    143,876,689.01x = 198,549,690.78 × 77,797,029.14
  4. Step 4: Simplify right side
    143,876,689.01x = 15,446,576,079,349,650
  5. Step 5: Solve for x
    x = 15,446,576,079,349,650/143,876,689.01
  6. Step 6: Final answer
    x = 107,359,824.48

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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.