Home / 216,897,248.48-325,345,163.12-78,722,671.43

Finding the Fourth Proportional to 216,897,248.48, 325,345,163.12 and 78,722,671.43

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Solution

The fourth proportional to 216,897,248.48, 325,345,163.12 and 78,722,671.43 is: 118,083,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,897,248.48 : 325,345,163.12 = 78,722,671.43 : x
  2. Step 2: Convert to fraction form
    216,897,248.48/325,345,163.12 = 78,722,671.43/x
  3. Step 3: Cross multiply
    216,897,248.48x = 325,345,163.12 × 78,722,671.43
  4. Step 4: Simplify right side
    216,897,248.48x = 25,612,040,377,241,904
  5. Step 5: Solve for x
    x = 25,612,040,377,241,904/216,897,248.48
  6. Step 6: Final answer
    x = 118,083,749.60

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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.