Home / 20,903,148.60-31,342,519.44-8,108,702.88

Finding the Fourth Proportional to 20,903,148.60, 31,342,519.44 and 8,108,702.88

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Solution

The fourth proportional to 20,903,148.60, 31,342,519.44 and 8,108,702.88 is: 12,158,320.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903,148.60 : 31,342,519.44 = 8,108,702.88 : x
  2. Step 2: Convert to fraction form
    20,903,148.60/31,342,519.44 = 8,108,702.88/x
  3. Step 3: Cross multiply
    20,903,148.60x = 31,342,519.44 × 8,108,702.88
  4. Step 4: Simplify right side
    20,903,148.60x = 254,147,177,649,584
  5. Step 5: Solve for x
    x = 254,147,177,649,584/20,903,148.60
  6. Step 6: Final answer
    x = 12,158,320.38

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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.