Home / 209,952,542.85-315,086,278.28-107,663,928.45

Finding the Fourth Proportional to 209,952,542.85, 315,086,278.28 and 107,663,928.45

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Solution

The fourth proportional to 209,952,542.85, 315,086,278.28 and 107,663,928.45 is: 161,576,640.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,542.85 : 315,086,278.28 = 107,663,928.45 : x
  2. Step 2: Convert to fraction form
    209,952,542.85/315,086,278.28 = 107,663,928.45/x
  3. Step 3: Cross multiply
    209,952,542.85x = 315,086,278.28 × 107,663,928.45
  4. Step 4: Simplify right side
    209,952,542.85x = 33,923,426,519,776,388
  5. Step 5: Solve for x
    x = 33,923,426,519,776,388/209,952,542.85
  6. Step 6: Final answer
    x = 161,576,640.41

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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.