Home / 21,673,377.45-29,908,111.82-12,379,122.36

Finding the Fourth Proportional to 21,673,377.45, 29,908,111.82 and 12,379,122.36

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Solution

The fourth proportional to 21,673,377.45, 29,908,111.82 and 12,379,122.36 is: 17,082,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673,377.45 : 29,908,111.82 = 12,379,122.36 : x
  2. Step 2: Convert to fraction form
    21,673,377.45/29,908,111.82 = 12,379,122.36/x
  3. Step 3: Cross multiply
    21,673,377.45x = 29,908,111.82 × 12,379,122.36
  4. Step 4: Simplify right side
    21,673,377.45x = 370,236,175,714,446.69
  5. Step 5: Solve for x
    x = 370,236,175,714,446.69/21,673,377.45
  6. Step 6: Final answer
    x = 17,082,532.55

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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.