Home / 31,419,630.75-47,128,972.80-14,135,625.57

Finding the Fourth Proportional to 31,419,630.75, 47,128,972.80 and 14,135,625.57

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Solution

The fourth proportional to 31,419,630.75, 47,128,972.80 and 14,135,625.57 is: 21,203,225.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,419,630.75 : 47,128,972.80 = 14,135,625.57 : x
  2. Step 2: Convert to fraction form
    31,419,630.75/47,128,972.80 = 14,135,625.57/x
  3. Step 3: Cross multiply
    31,419,630.75x = 47,128,972.80 × 14,135,625.57
  4. Step 4: Simplify right side
    31,419,630.75x = 666,197,512,999,514.50
  5. Step 5: Solve for x
    x = 666,197,512,999,514.50/31,419,630.75
  6. Step 6: Final answer
    x = 21,203,225.41

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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.