Home / 15,786,868.72-21,785,878.99-8,543,524.72

Finding the Fourth Proportional to 15,786,868.72, 21,785,878.99 and 8,543,524.72

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Solution

The fourth proportional to 15,786,868.72, 21,785,878.99 and 8,543,524.72 is: 11,790,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786,868.72 : 21,785,878.99 = 8,543,524.72 : x
  2. Step 2: Convert to fraction form
    15,786,868.72/21,785,878.99 = 8,543,524.72/x
  3. Step 3: Cross multiply
    15,786,868.72x = 21,785,878.99 × 8,543,524.72
  4. Step 4: Simplify right side
    15,786,868.72x = 186,128,195,655,276.03
  5. Step 5: Solve for x
    x = 186,128,195,655,276.03/15,786,868.72
  6. Step 6: Final answer
    x = 11,790,064.20

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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.