Home / 28,487,316.62-42,731,028.40-6,921,936.56

Finding the Fourth Proportional to 28,487,316.62, 42,731,028.40 and 6,921,936.56

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Solution

The fourth proportional to 28,487,316.62, 42,731,028.40 and 6,921,936.56 is: 10,382,917.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,487,316.62 : 42,731,028.40 = 6,921,936.56 : x
  2. Step 2: Convert to fraction form
    28,487,316.62/42,731,028.40 = 6,921,936.56/x
  3. Step 3: Cross multiply
    28,487,316.62x = 42,731,028.40 × 6,921,936.56
  4. Step 4: Simplify right side
    28,487,316.62x = 295,781,467,728,358.25
  5. Step 5: Solve for x
    x = 295,781,467,728,358.25/28,487,316.62
  6. Step 6: Final answer
    x = 10,382,917.83

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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.