Home / 21,006,279.88-31,496,821.26-9,632,480.20

Finding the Fourth Proportional to 21,006,279.88, 31,496,821.26 and 9,632,480.20

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Solution

The fourth proportional to 21,006,279.88, 31,496,821.26 and 9,632,480.20 is: 14,442,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,006,279.88 : 31,496,821.26 = 9,632,480.20 : x
  2. Step 2: Convert to fraction form
    21,006,279.88/31,496,821.26 = 9,632,480.20/x
  3. Step 3: Cross multiply
    21,006,279.88x = 31,496,821.26 × 9,632,480.20
  4. Step 4: Simplify right side
    21,006,279.88x = 303,392,507,149,889.06
  5. Step 5: Solve for x
    x = 303,392,507,149,889.06/21,006,279.88
  6. Step 6: Final answer
    x = 14,442,943.20

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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.