Home / 20,788,013-31,181,494.62-5,641,550.84

Finding the Fourth Proportional to 20,788,013, 31,181,494.62 and 5,641,550.84

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Solution

The fourth proportional to 20,788,013, 31,181,494.62 and 5,641,550.84 is: 8,462,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,788,013 : 31,181,494.62 = 5,641,550.84 : x
  2. Step 2: Convert to fraction form
    20,788,013/31,181,494.62 = 5,641,550.84/x
  3. Step 3: Cross multiply
    20,788,013x = 31,181,494.62 × 5,641,550.84
  4. Step 4: Simplify right side
    20,788,013x = 175,911,987,165,916.47
  5. Step 5: Solve for x
    x = 175,911,987,165,916.47/20,788,013
  6. Step 6: Final answer
    x = 8,462,183.82

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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.