Home / 131,328,400.20-196,992,600.30-128,641,014.60

Finding the Fourth Proportional to 131,328,400.20, 196,992,600.30 and 128,641,014.60

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Solution

The fourth proportional to 131,328,400.20, 196,992,600.30 and 128,641,014.60 is: 192,961,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,328,400.20 : 196,992,600.30 = 128,641,014.60 : x
  2. Step 2: Convert to fraction form
    131,328,400.20/196,992,600.30 = 128,641,014.60/x
  3. Step 3: Cross multiply
    131,328,400.20x = 196,992,600.30 × 128,641,014.60
  4. Step 4: Simplify right side
    131,328,400.20x = 25,341,327,971,284,264
  5. Step 5: Solve for x
    x = 25,341,327,971,284,264/131,328,400.20
  6. Step 6: Final answer
    x = 192,961,521.90

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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.