Home / 15,231,065.29-21,018,745.70-8,261,725.40

Finding the Fourth Proportional to 15,231,065.29, 21,018,745.70 and 8,261,725.40

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Solution

The fourth proportional to 15,231,065.29, 21,018,745.70 and 8,261,725.40 is: 11,401,113.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,231,065.29 : 21,018,745.70 = 8,261,725.40 : x
  2. Step 2: Convert to fraction form
    15,231,065.29/21,018,745.70 = 8,261,725.40/x
  3. Step 3: Cross multiply
    15,231,065.29x = 21,018,745.70 × 8,261,725.40
  4. Step 4: Simplify right side
    15,231,065.29x = 173,651,105,079,428.41
  5. Step 5: Solve for x
    x = 173,651,105,079,428.41/15,231,065.29
  6. Step 6: Final answer
    x = 11,401,113.57

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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.