Home / 20,157,028.98-30,217,639.23-7,858,157.46

Finding the Fourth Proportional to 20,157,028.98, 30,217,639.23 and 7,858,157.46

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Solution

The fourth proportional to 20,157,028.98, 30,217,639.23 and 7,858,157.46 is: 11,780,256.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,028.98 : 30,217,639.23 = 7,858,157.46 : x
  2. Step 2: Convert to fraction form
    20,157,028.98/30,217,639.23 = 7,858,157.46/x
  3. Step 3: Cross multiply
    20,157,028.98x = 30,217,639.23 × 7,858,157.46
  4. Step 4: Simplify right side
    20,157,028.98x = 237,454,967,138,813.16
  5. Step 5: Solve for x
    x = 237,454,967,138,813.16/20,157,028.98
  6. Step 6: Final answer
    x = 11,780,256.28

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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.