Home / 21,257,714.20-31,891,236.90-10,480,178.20

Finding the Fourth Proportional to 21,257,714.20, 31,891,236.90 and 10,480,178.20

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Solution

The fourth proportional to 21,257,714.20, 31,891,236.90 and 10,480,178.20 is: 15,722,567.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257,714.20 : 31,891,236.90 = 10,480,178.20 : x
  2. Step 2: Convert to fraction form
    21,257,714.20/31,891,236.90 = 10,480,178.20/x
  3. Step 3: Cross multiply
    21,257,714.20x = 31,891,236.90 × 10,480,178.20
  4. Step 4: Simplify right side
    21,257,714.20x = 334,225,845,730,415.56
  5. Step 5: Solve for x
    x = 334,225,845,730,415.56/21,257,714.20
  6. Step 6: Final answer
    x = 15,722,567.47

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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.