Home / 107,769,479-161,756,418.44-66,704,700.92

Finding the Fourth Proportional to 107,769,479, 161,756,418.44 and 66,704,700.92

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Solution

The fourth proportional to 107,769,479, 161,756,418.44 and 66,704,700.92 is: 100,120,308.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,769,479 : 161,756,418.44 = 66,704,700.92 : x
  2. Step 2: Convert to fraction form
    107,769,479/161,756,418.44 = 66,704,700.92/x
  3. Step 3: Cross multiply
    107,769,479x = 161,756,418.44 × 66,704,700.92
  4. Step 4: Simplify right side
    107,769,479x = 10,789,913,513,930,574
  5. Step 5: Solve for x
    x = 10,789,913,513,930,574/107,769,479
  6. Step 6: Final answer
    x = 100,120,308.77

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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.