Home / 121,405,965.20-182,108,947.80-108,651,381.20

Finding the Fourth Proportional to 121,405,965.20, 182,108,947.80 and 108,651,381.20

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Solution

The fourth proportional to 121,405,965.20, 182,108,947.80 and 108,651,381.20 is: 162,977,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,405,965.20 : 182,108,947.80 = 108,651,381.20 : x
  2. Step 2: Convert to fraction form
    121,405,965.20/182,108,947.80 = 108,651,381.20/x
  3. Step 3: Cross multiply
    121,405,965.20x = 182,108,947.80 × 108,651,381.20
  4. Step 4: Simplify right side
    121,405,965.20x = 19,786,388,707,348,704
  5. Step 5: Solve for x
    x = 19,786,388,707,348,704/121,405,965.20
  6. Step 6: Final answer
    x = 162,977,071.80

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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.