Home / 23,131,381.44-31,921,495.32-12,818,276.72

Finding the Fourth Proportional to 23,131,381.44, 31,921,495.32 and 12,818,276.72

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Solution

The fourth proportional to 23,131,381.44, 31,921,495.32 and 12,818,276.72 is: 17,689,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,131,381.44 : 31,921,495.32 = 12,818,276.72 : x
  2. Step 2: Convert to fraction form
    23,131,381.44/31,921,495.32 = 12,818,276.72/x
  3. Step 3: Cross multiply
    23,131,381.44x = 31,921,495.32 × 12,818,276.72
  4. Step 4: Simplify right side
    23,131,381.44x = 409,178,560,327,945
  5. Step 5: Solve for x
    x = 409,178,560,327,945/23,131,381.44
  6. Step 6: Final answer
    x = 17,689,326.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.