Home / 20,185,318.20-30,277,977.30-12,123,161.40

Finding the Fourth Proportional to 20,185,318.20, 30,277,977.30 and 12,123,161.40

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Solution

The fourth proportional to 20,185,318.20, 30,277,977.30 and 12,123,161.40 is: 18,184,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185,318.20 : 30,277,977.30 = 12,123,161.40 : x
  2. Step 2: Convert to fraction form
    20,185,318.20/30,277,977.30 = 12,123,161.40/x
  3. Step 3: Cross multiply
    20,185,318.20x = 30,277,977.30 × 12,123,161.40
  4. Step 4: Simplify right side
    20,185,318.20x = 367,064,805,673,436.25
  5. Step 5: Solve for x
    x = 367,064,805,673,436.25/20,185,318.20
  6. Step 6: Final answer
    x = 18,184,742.10

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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.