Home / 21,002,661.98-31,508,620.01-6,429,691.70

Finding the Fourth Proportional to 21,002,661.98, 31,508,620.01 and 6,429,691.70

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Solution

The fourth proportional to 21,002,661.98, 31,508,620.01 and 6,429,691.70 is: 9,645,954.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,002,661.98 : 31,508,620.01 = 6,429,691.70 : x
  2. Step 2: Convert to fraction form
    21,002,661.98/31,508,620.01 = 6,429,691.70/x
  3. Step 3: Cross multiply
    21,002,661.98x = 31,508,620.01 × 6,429,691.70
  4. Step 4: Simplify right side
    21,002,661.98x = 202,590,712,524,602.47
  5. Step 5: Solve for x
    x = 202,590,712,524,602.47/21,002,661.98
  6. Step 6: Final answer
    x = 9,645,954.06

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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.