Home / 134,857,682.22-186,103,601.70-72,978,020.76

Finding the Fourth Proportional to 134,857,682.22, 186,103,601.70 and 72,978,020.76

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Solution

The fourth proportional to 134,857,682.22, 186,103,601.70 and 72,978,020.76 is: 100,709,668.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857,682.22 : 186,103,601.70 = 72,978,020.76 : x
  2. Step 2: Convert to fraction form
    134,857,682.22/186,103,601.70 = 72,978,020.76/x
  3. Step 3: Cross multiply
    134,857,682.22x = 186,103,601.70 × 72,978,020.76
  4. Step 4: Simplify right side
    134,857,682.22x = 13,581,472,508,373,372
  5. Step 5: Solve for x
    x = 13,581,472,508,373,372/134,857,682.22
  6. Step 6: Final answer
    x = 100,709,668.78

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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.