Home / 15,087,955.98-20,820,800.61-8,561,196.21

Finding the Fourth Proportional to 15,087,955.98, 20,820,800.61 and 8,561,196.21

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Solution

The fourth proportional to 15,087,955.98, 20,820,800.61 and 8,561,196.21 is: 11,814,122.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,087,955.98 : 20,820,800.61 = 8,561,196.21 : x
  2. Step 2: Convert to fraction form
    15,087,955.98/20,820,800.61 = 8,561,196.21/x
  3. Step 3: Cross multiply
    15,087,955.98x = 20,820,800.61 × 8,561,196.21
  4. Step 4: Simplify right side
    15,087,955.98x = 178,250,959,271,497.69
  5. Step 5: Solve for x
    x = 178,250,959,271,497.69/15,087,955.98
  6. Step 6: Final answer
    x = 11,814,122.44

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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.