Home / 112,172,211.88-154,823,480.36-65,777,412.56

Finding the Fourth Proportional to 112,172,211.88, 154,823,480.36 and 65,777,412.56

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Solution

The fourth proportional to 112,172,211.88, 154,823,480.36 and 65,777,412.56 is: 90,787,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,172,211.88 : 154,823,480.36 = 65,777,412.56 : x
  2. Step 2: Convert to fraction form
    112,172,211.88/154,823,480.36 = 65,777,412.56/x
  3. Step 3: Cross multiply
    112,172,211.88x = 154,823,480.36 × 65,777,412.56
  4. Step 4: Simplify right side
    112,172,211.88x = 10,183,887,941,614,778
  5. Step 5: Solve for x
    x = 10,183,887,941,614,778/112,172,211.88
  6. Step 6: Final answer
    x = 90,787,974.77

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1.5x scale

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.