Home / 21,740,987.20-32,615,595.60-7,168,743.76

Finding the Fourth Proportional to 21,740,987.20, 32,615,595.60 and 7,168,743.76

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Solution

The fourth proportional to 21,740,987.20, 32,615,595.60 and 7,168,743.76 is: 10,754,472.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,740,987.20 : 32,615,595.60 = 7,168,743.76 : x
  2. Step 2: Convert to fraction form
    21,740,987.20/32,615,595.60 = 7,168,743.76/x
  3. Step 3: Cross multiply
    21,740,987.20x = 32,615,595.60 × 7,168,743.76
  4. Step 4: Simplify right side
    21,740,987.20x = 233,812,847,436,183.47
  5. Step 5: Solve for x
    x = 233,812,847,436,183.47/21,740,987.20
  6. Step 6: Final answer
    x = 10,754,472.43

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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.