Home / 15,163,871.25-22,765,985.42-7,980,449.68

Finding the Fourth Proportional to 15,163,871.25, 22,765,985.42 and 7,980,449.68

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Solution

The fourth proportional to 15,163,871.25, 22,765,985.42 and 7,980,449.68 is: 11,981,294.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163,871.25 : 22,765,985.42 = 7,980,449.68 : x
  2. Step 2: Convert to fraction form
    15,163,871.25/22,765,985.42 = 7,980,449.68/x
  3. Step 3: Cross multiply
    15,163,871.25x = 22,765,985.42 × 7,980,449.68
  4. Step 4: Simplify right side
    15,163,871.25x = 181,682,801,147,823.47
  5. Step 5: Solve for x
    x = 181,682,801,147,823.47/15,163,871.25
  6. Step 6: Final answer
    x = 11,981,294.10

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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.