Home / 77,278,520.10-115,917,780.15-54,603,704.10

Finding the Fourth Proportional to 77,278,520.10, 115,917,780.15 and 54,603,704.10

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Solution

The fourth proportional to 77,278,520.10, 115,917,780.15 and 54,603,704.10 is: 81,905,556.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,278,520.10 : 115,917,780.15 = 54,603,704.10 : x
  2. Step 2: Convert to fraction form
    77,278,520.10/115,917,780.15 = 54,603,704.10/x
  3. Step 3: Cross multiply
    77,278,520.10x = 115,917,780.15 × 54,603,704.10
  4. Step 4: Simplify right side
    77,278,520.10x = 6,329,540,167,239,454
  5. Step 5: Solve for x
    x = 6,329,540,167,239,454/77,278,520.10
  6. Step 6: Final answer
    x = 81,905,556.15

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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.