Home / 11,969,030.20-17,980,118.16-7,423,438.72

Finding the Fourth Proportional to 11,969,030.20, 17,980,118.16 and 7,423,438.72

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Solution

The fourth proportional to 11,969,030.20, 17,980,118.16 and 7,423,438.72 is: 11,151,639.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,969,030.20 : 17,980,118.16 = 7,423,438.72 : x
  2. Step 2: Convert to fraction form
    11,969,030.20/17,980,118.16 = 7,423,438.72/x
  3. Step 3: Cross multiply
    11,969,030.20x = 17,980,118.16 × 7,423,438.72
  4. Step 4: Simplify right side
    11,969,030.20x = 133,474,305,339,119.16
  5. Step 5: Solve for x
    x = 133,474,305,339,119.16/11,969,030.20
  6. Step 6: Final answer
    x = 11,151,639.11

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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.