Home / 12,960,094.20-19,440,141.30-7,858,260.60

Finding the Fourth Proportional to 12,960,094.20, 19,440,141.30 and 7,858,260.60

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Solution

The fourth proportional to 12,960,094.20, 19,440,141.30 and 7,858,260.60 is: 11,787,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,094.20 : 19,440,141.30 = 7,858,260.60 : x
  2. Step 2: Convert to fraction form
    12,960,094.20/19,440,141.30 = 7,858,260.60/x
  3. Step 3: Cross multiply
    12,960,094.20x = 19,440,141.30 × 7,858,260.60
  4. Step 4: Simplify right side
    12,960,094.20x = 152,765,696,436,222.78
  5. Step 5: Solve for x
    x = 152,765,696,436,222.78/12,960,094.20
  6. Step 6: Final answer
    x = 11,787,390.90

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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.