Home / 20,853,115.20-31,279,672.80-14,032,955.70

Finding the Fourth Proportional to 20,853,115.20, 31,279,672.80 and 14,032,955.70

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Solution

The fourth proportional to 20,853,115.20, 31,279,672.80 and 14,032,955.70 is: 21,049,433.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,115.20 : 31,279,672.80 = 14,032,955.70 : x
  2. Step 2: Convert to fraction form
    20,853,115.20/31,279,672.80 = 14,032,955.70/x
  3. Step 3: Cross multiply
    20,853,115.20x = 31,279,672.80 × 14,032,955.70
  4. Step 4: Simplify right side
    20,853,115.20x = 438,946,262,712,894.94
  5. Step 5: Solve for x
    x = 438,946,262,712,894.94/20,853,115.20
  6. Step 6: Final answer
    x = 21,049,433.55

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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.