Home / 31,947,575.20-47,921,362.80-12,792,079.60

Finding the Fourth Proportional to 31,947,575.20, 47,921,362.80 and 12,792,079.60

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Solution

The fourth proportional to 31,947,575.20, 47,921,362.80 and 12,792,079.60 is: 19,188,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,947,575.20 : 47,921,362.80 = 12,792,079.60 : x
  2. Step 2: Convert to fraction form
    31,947,575.20/47,921,362.80 = 12,792,079.60/x
  3. Step 3: Cross multiply
    31,947,575.20x = 47,921,362.80 × 12,792,079.60
  4. Step 4: Simplify right side
    31,947,575.20x = 613,013,887,478,078.88
  5. Step 5: Solve for x
    x = 613,013,887,478,078.88/31,947,575.20
  6. Step 6: Final answer
    x = 19,188,119.40

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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.