Home / 247,993,170,006.78-371,687,545,785.15-128,544,641,441.82

Finding the Fourth Proportional to 247,993,170,006.78, 371,687,545,785.15 and 128,544,641,441.82

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Solution

The fourth proportional to 247,993,170,006.78, 371,687,545,785.15 and 128,544,641,441.82 is: 192,660,315,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,993,170,006.78 : 371,687,545,785.15 = 128,544,641,441.82 : x
  2. Step 2: Convert to fraction form
    247,993,170,006.78/371,687,545,785.15 = 128,544,641,441.82/x
  3. Step 3: Cross multiply
    247,993,170,006.78x = 371,687,545,785.15 × 128,544,641,441.82
  4. Step 4: Simplify right side
    247,993,170,006.78x = 47,778,442,301,342,169,956,352
  5. Step 5: Solve for x
    x = 47,778,442,301,342,169,956,352/247,993,170,006.78
  6. Step 6: Final answer
    x = 192,660,315,201.57

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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.