Home / 209,990,759.96-315,001,275.23-80,598,370.28

Finding the Fourth Proportional to 209,990,759.96, 315,001,275.23 and 80,598,370.28

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Solution

The fourth proportional to 209,990,759.96, 315,001,275.23 and 80,598,370.28 is: 120,903,364.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,990,759.96 : 315,001,275.23 = 80,598,370.28 : x
  2. Step 2: Convert to fraction form
    209,990,759.96/315,001,275.23 = 80,598,370.28/x
  3. Step 3: Cross multiply
    209,990,759.96x = 315,001,275.23 × 80,598,370.28
  4. Step 4: Simplify right side
    209,990,759.96x = 25,388,589,418,286,224
  5. Step 5: Solve for x
    x = 25,388,589,418,286,224/209,990,759.96
  6. Step 6: Final answer
    x = 120,903,364.62

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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.