Home / 12,140,163.30-18,207,620.55-5,316,723.30

Finding the Fourth Proportional to 12,140,163.30, 18,207,620.55 and 5,316,723.30

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Solution

The fourth proportional to 12,140,163.30, 18,207,620.55 and 5,316,723.30 is: 7,973,935.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140,163.30 : 18,207,620.55 = 5,316,723.30 : x
  2. Step 2: Convert to fraction form
    12,140,163.30/18,207,620.55 = 5,316,723.30/x
  3. Step 3: Cross multiply
    12,140,163.30x = 18,207,620.55 × 5,316,723.30
  4. Step 4: Simplify right side
    12,140,163.30x = 96,804,880,415,743.81
  5. Step 5: Solve for x
    x = 96,804,880,415,743.81/12,140,163.30
  6. Step 6: Final answer
    x = 7,973,935.61

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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.