Home / 15,247,038-21,040,850.97-8,720,658.21

Finding the Fourth Proportional to 15,247,038, 21,040,850.97 and 8,720,658.21

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Solution

The fourth proportional to 15,247,038, 21,040,850.97 and 8,720,658.21 is: 12,034,473.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247,038 : 21,040,850.97 = 8,720,658.21 : x
  2. Step 2: Convert to fraction form
    15,247,038/21,040,850.97 = 8,720,658.21/x
  3. Step 3: Cross multiply
    15,247,038x = 21,040,850.97 × 8,720,658.21
  4. Step 4: Simplify right side
    15,247,038x = 183,490,069,756,916.97
  5. Step 5: Solve for x
    x = 183,490,069,756,916.97/15,247,038
  6. Step 6: Final answer
    x = 12,034,473.17

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1.5x scale

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.