Home / 18,518,430.30-27,777,648.53-7,729,845.90

Finding the Fourth Proportional to 18,518,430.30, 27,777,648.53 and 7,729,845.90

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Solution

The fourth proportional to 18,518,430.30, 27,777,648.53 and 7,729,845.90 is: 11,594,770.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518,430.30 : 27,777,648.53 = 7,729,845.90 : x
  2. Step 2: Convert to fraction form
    18,518,430.30/27,777,648.53 = 7,729,845.90/x
  3. Step 3: Cross multiply
    18,518,430.30x = 27,777,648.53 × 7,729,845.90
  4. Step 4: Simplify right side
    18,518,430.30x = 214,716,942,516,419.97
  5. Step 5: Solve for x
    x = 214,716,942,516,419.97/18,518,430.30
  6. Step 6: Final answer
    x = 11,594,770.13

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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.