Home / 20,784,102.39-31,168,399.76-7,133,375.10

Finding the Fourth Proportional to 20,784,102.39, 31,168,399.76 and 7,133,375.10

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Solution

The fourth proportional to 20,784,102.39, 31,168,399.76 and 7,133,375.10 is: 10,697,401.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784,102.39 : 31,168,399.76 = 7,133,375.10 : x
  2. Step 2: Convert to fraction form
    20,784,102.39/31,168,399.76 = 7,133,375.10/x
  3. Step 3: Cross multiply
    20,784,102.39x = 31,168,399.76 × 7,133,375.10
  4. Step 4: Simplify right side
    20,784,102.39x = 222,335,886,616,821.41
  5. Step 5: Solve for x
    x = 222,335,886,616,821.41/20,784,102.39
  6. Step 6: Final answer
    x = 10,697,401.43

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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.