Home / 107,524,379.20-161,286,568.80-77,291,291.20

Finding the Fourth Proportional to 107,524,379.20, 161,286,568.80 and 77,291,291.20

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Solution

The fourth proportional to 107,524,379.20, 161,286,568.80 and 77,291,291.20 is: 115,936,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,524,379.20 : 161,286,568.80 = 77,291,291.20 : x
  2. Step 2: Convert to fraction form
    107,524,379.20/161,286,568.80 = 77,291,291.20/x
  3. Step 3: Cross multiply
    107,524,379.20x = 161,286,568.80 × 77,291,291.20
  4. Step 4: Simplify right side
    107,524,379.20x = 12,466,047,155,769,636
  5. Step 5: Solve for x
    x = 12,466,047,155,769,636/107,524,379.20
  6. Step 6: Final answer
    x = 115,936,936.80

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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.