Home / 12,345,163.65-18,517,745.48-7,810,200.45

Finding the Fourth Proportional to 12,345,163.65, 18,517,745.48 and 7,810,200.45

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Solution

The fourth proportional to 12,345,163.65, 18,517,745.48 and 7,810,200.45 is: 11,715,300.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345,163.65 : 18,517,745.48 = 7,810,200.45 : x
  2. Step 2: Convert to fraction form
    12,345,163.65/18,517,745.48 = 7,810,200.45/x
  3. Step 3: Cross multiply
    12,345,163.65x = 18,517,745.48 × 7,810,200.45
  4. Step 4: Simplify right side
    12,345,163.65x = 144,627,304,041,830.47
  5. Step 5: Solve for x
    x = 144,627,304,041,830.47/12,345,163.65
  6. Step 6: Final answer
    x = 11,715,300.68

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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.