Home / 12,135,617.40-18,203,426.10-7,340,838.60

Finding the Fourth Proportional to 12,135,617.40, 18,203,426.10 and 7,340,838.60

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Solution

The fourth proportional to 12,135,617.40, 18,203,426.10 and 7,340,838.60 is: 11,011,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135,617.40 : 18,203,426.10 = 7,340,838.60 : x
  2. Step 2: Convert to fraction form
    12,135,617.40/18,203,426.10 = 7,340,838.60/x
  3. Step 3: Cross multiply
    12,135,617.40x = 18,203,426.10 × 7,340,838.60
  4. Step 4: Simplify right side
    12,135,617.40x = 133,628,412,967,127.47
  5. Step 5: Solve for x
    x = 133,628,412,967,127.47/12,135,617.40
  6. Step 6: Final answer
    x = 11,011,257.90

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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.