Home / 20,896,331.34-31,330,187.54-10,641,340.38

Finding the Fourth Proportional to 20,896,331.34, 31,330,187.54 and 10,641,340.38

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Solution

The fourth proportional to 20,896,331.34, 31,330,187.54 and 10,641,340.38 is: 15,954,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896,331.34 : 31,330,187.54 = 10,641,340.38 : x
  2. Step 2: Convert to fraction form
    20,896,331.34/31,330,187.54 = 10,641,340.38/x
  3. Step 3: Cross multiply
    20,896,331.34x = 31,330,187.54 × 10,641,340.38
  4. Step 4: Simplify right side
    20,896,331.34x = 333,395,189,782,374.88
  5. Step 5: Solve for x
    x = 333,395,189,782,374.88/20,896,331.34
  6. Step 6: Final answer
    x = 15,954,723.55

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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.