Home / 15,179,055.05-20,947,033.31-8,209,740.33

Finding the Fourth Proportional to 15,179,055.05, 20,947,033.31 and 8,209,740.33

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Solution

The fourth proportional to 15,179,055.05, 20,947,033.31 and 8,209,740.33 is: 11,329,407.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,179,055.05 : 20,947,033.31 = 8,209,740.33 : x
  2. Step 2: Convert to fraction form
    15,179,055.05/20,947,033.31 = 8,209,740.33/x
  3. Step 3: Cross multiply
    15,179,055.05x = 20,947,033.31 × 8,209,740.33
  4. Step 4: Simplify right side
    15,179,055.05x = 171,969,704,117,911.69
  5. Step 5: Solve for x
    x = 171,969,704,117,911.69/15,179,055.05
  6. Step 6: Final answer
    x = 11,329,407.76

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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.