Home / 21,520,207.94-32,143,159.29-19,467,710.78

Finding the Fourth Proportional to 21,520,207.94, 32,143,159.29 and 19,467,710.78

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Solution

The fourth proportional to 21,520,207.94, 32,143,159.29 and 19,467,710.78 is: 29,077,494.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,520,207.94 : 32,143,159.29 = 19,467,710.78 : x
  2. Step 2: Convert to fraction form
    21,520,207.94/32,143,159.29 = 19,467,710.78/x
  3. Step 3: Cross multiply
    21,520,207.94x = 32,143,159.29 × 19,467,710.78
  4. Step 4: Simplify right side
    21,520,207.94x = 625,753,728,515,851.62
  5. Step 5: Solve for x
    x = 625,753,728,515,851.62/21,520,207.94
  6. Step 6: Final answer
    x = 29,077,494.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.