Home / 13,147,574.39-18,143,743.85-7,346,600.63

Finding the Fourth Proportional to 13,147,574.39, 18,143,743.85 and 7,346,600.63

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Solution

The fourth proportional to 13,147,574.39, 18,143,743.85 and 7,346,600.63 is: 10,138,359.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147,574.39 : 18,143,743.85 = 7,346,600.63 : x
  2. Step 2: Convert to fraction form
    13,147,574.39/18,143,743.85 = 7,346,600.63/x
  3. Step 3: Cross multiply
    13,147,574.39x = 18,143,743.85 × 7,346,600.63
  4. Step 4: Simplify right side
    13,147,574.39x = 133,294,840,008,430.33
  5. Step 5: Solve for x
    x = 133,294,840,008,430.33/13,147,574.39
  6. Step 6: Final answer
    x = 10,138,359.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.