Home / 209,990,760.33-315,001,275.80-80,598,370.65

Finding the Fourth Proportional to 209,990,760.33, 315,001,275.80 and 80,598,370.65

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Solution

The fourth proportional to 209,990,760.33, 315,001,275.80 and 80,598,370.65 is: 120,903,365.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,990,760.33 : 315,001,275.80 = 80,598,370.65 : x
  2. Step 2: Convert to fraction form
    209,990,760.33/315,001,275.80 = 80,598,370.65/x
  3. Step 3: Cross multiply
    209,990,760.33x = 315,001,275.80 × 80,598,370.65
  4. Step 4: Simplify right side
    209,990,760.33x = 25,388,589,581,748,288
  5. Step 5: Solve for x
    x = 25,388,589,581,748,288/209,990,760.33
  6. Step 6: Final answer
    x = 120,903,365.19

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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.