Home / 30,438,608.96-42,002,949.12-17,384,065.76

Finding the Fourth Proportional to 30,438,608.96, 42,002,949.12 and 17,384,065.76

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Solution

The fourth proportional to 30,438,608.96, 42,002,949.12 and 17,384,065.76 is: 23,988,679.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,438,608.96 : 42,002,949.12 = 17,384,065.76 : x
  2. Step 2: Convert to fraction form
    30,438,608.96/42,002,949.12 = 17,384,065.76/x
  3. Step 3: Cross multiply
    30,438,608.96x = 42,002,949.12 × 17,384,065.76
  4. Step 4: Simplify right side
    30,438,608.96x = 730,182,029,616,014.12
  5. Step 5: Solve for x
    x = 730,182,029,616,014.12/30,438,608.96
  6. Step 6: Final answer
    x = 23,988,679.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.