Home / 120,020,176.62-165,628,351.08-65,016,033.12

Finding the Fourth Proportional to 120,020,176.62, 165,628,351.08 and 65,016,033.12

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Solution

The fourth proportional to 120,020,176.62, 165,628,351.08 and 65,016,033.12 is: 89,722,400.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,020,176.62 : 165,628,351.08 = 65,016,033.12 : x
  2. Step 2: Convert to fraction form
    120,020,176.62/165,628,351.08 = 65,016,033.12/x
  3. Step 3: Cross multiply
    120,020,176.62x = 165,628,351.08 × 65,016,033.12
  4. Step 4: Simplify right side
    120,020,176.62x = 10,768,498,359,428,268
  5. Step 5: Solve for x
    x = 10,768,498,359,428,268/120,020,176.62
  6. Step 6: Final answer
    x = 89,722,400.54

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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.