Home / 21,557,885.59-29,674,370.82-18,799,706.80

Finding the Fourth Proportional to 21,557,885.59, 29,674,370.82 and 18,799,706.80

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Solution

The fourth proportional to 21,557,885.59, 29,674,370.82 and 18,799,706.80 is: 25,877,745.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557,885.59 : 29,674,370.82 = 18,799,706.80 : x
  2. Step 2: Convert to fraction form
    21,557,885.59/29,674,370.82 = 18,799,706.80/x
  3. Step 3: Cross multiply
    21,557,885.59x = 29,674,370.82 × 18,799,706.80
  4. Step 4: Simplify right side
    21,557,885.59x = 557,869,470,890,475.62
  5. Step 5: Solve for x
    x = 557,869,470,890,475.62/21,557,885.59
  6. Step 6: Final answer
    x = 25,877,745.23

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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.