Home / 28,679,820.80-43,019,731.20-26,412,339.20

Finding the Fourth Proportional to 28,679,820.80, 43,019,731.20 and 26,412,339.20

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Solution

The fourth proportional to 28,679,820.80, 43,019,731.20 and 26,412,339.20 is: 39,618,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679,820.80 : 43,019,731.20 = 26,412,339.20 : x
  2. Step 2: Convert to fraction form
    28,679,820.80/43,019,731.20 = 26,412,339.20/x
  3. Step 3: Cross multiply
    28,679,820.80x = 43,019,731.20 × 26,412,339.20
  4. Step 4: Simplify right side
    28,679,820.80x = 1,136,251,732,747,223
  5. Step 5: Solve for x
    x = 1,136,251,732,747,223/28,679,820.80
  6. Step 6: Final answer
    x = 39,618,508.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.