Home / 173,815,859.40-260,723,789.10-78,264,371.40

Finding the Fourth Proportional to 173,815,859.40, 260,723,789.10 and 78,264,371.40

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Solution

The fourth proportional to 173,815,859.40, 260,723,789.10 and 78,264,371.40 is: 117,396,557.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,815,859.40 : 260,723,789.10 = 78,264,371.40 : x
  2. Step 2: Convert to fraction form
    173,815,859.40/260,723,789.10 = 78,264,371.40/x
  3. Step 3: Cross multiply
    173,815,859.40x = 260,723,789.10 × 78,264,371.40
  4. Step 4: Simplify right side
    173,815,859.40x = 20,405,383,462,937,672
  5. Step 5: Solve for x
    x = 20,405,383,462,937,672/173,815,859.40
  6. Step 6: Final answer
    x = 117,396,557.10

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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.