Home / 21,015,450.77-31,532,279.40-11,288,714.13

Finding the Fourth Proportional to 21,015,450.77, 31,532,279.40 and 11,288,714.13

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Solution

The fourth proportional to 21,015,450.77, 31,532,279.40 and 11,288,714.13 is: 16,937,961.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015,450.77 : 31,532,279.40 = 11,288,714.13 : x
  2. Step 2: Convert to fraction form
    21,015,450.77/31,532,279.40 = 11,288,714.13/x
  3. Step 3: Cross multiply
    21,015,450.77x = 31,532,279.40 × 11,288,714.13
  4. Step 4: Simplify right side
    21,015,450.77x = 355,958,888,013,887.94
  5. Step 5: Solve for x
    x = 355,958,888,013,887.94/21,015,450.77
  6. Step 6: Final answer
    x = 16,937,961.12

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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.