Home / 18,518,406.71-27,777,613.10-7,729,822.24

Finding the Fourth Proportional to 18,518,406.71, 27,777,613.10 and 7,729,822.24

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Solution

The fourth proportional to 18,518,406.71, 27,777,613.10 and 7,729,822.24 is: 11,594,734.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518,406.71 : 27,777,613.10 = 7,729,822.24 : x
  2. Step 2: Convert to fraction form
    18,518,406.71/27,777,613.10 = 7,729,822.24/x
  3. Step 3: Cross multiply
    18,518,406.71x = 27,777,613.10 × 7,729,822.24
  4. Step 4: Simplify right side
    18,518,406.71x = 214,716,011,406,402.19
  5. Step 5: Solve for x
    x = 214,716,011,406,402.19/18,518,406.71
  6. Step 6: Final answer
    x = 11,594,734.62

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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.