Home / 31,503,881.20-47,255,821.80-13,587,977.20

Finding the Fourth Proportional to 31,503,881.20, 47,255,821.80 and 13,587,977.20

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Solution

The fourth proportional to 31,503,881.20, 47,255,821.80 and 13,587,977.20 is: 20,381,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,503,881.20 : 47,255,821.80 = 13,587,977.20 : x
  2. Step 2: Convert to fraction form
    31,503,881.20/47,255,821.80 = 13,587,977.20/x
  3. Step 3: Cross multiply
    31,503,881.20x = 47,255,821.80 × 13,587,977.20
  4. Step 4: Simplify right side
    31,503,881.20x = 642,111,029,185,662.88
  5. Step 5: Solve for x
    x = 642,111,029,185,662.88/31,503,881.20
  6. Step 6: Final answer
    x = 20,381,965.80

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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.