Home / 20,918,707.20-31,360,089.76-7,270,080.32

Finding the Fourth Proportional to 20,918,707.20, 31,360,089.76 and 7,270,080.32

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Solution

The fourth proportional to 20,918,707.20, 31,360,089.76 and 7,270,080.32 is: 10,898,874.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,918,707.20 : 31,360,089.76 = 7,270,080.32 : x
  2. Step 2: Convert to fraction form
    20,918,707.20/31,360,089.76 = 7,270,080.32/x
  3. Step 3: Cross multiply
    20,918,707.20x = 31,360,089.76 × 7,270,080.32
  4. Step 4: Simplify right side
    20,918,707.20x = 227,990,371,397,609.53
  5. Step 5: Solve for x
    x = 227,990,371,397,609.53/20,918,707.20
  6. Step 6: Final answer
    x = 10,898,874.83

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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.