Home / 13,800,147.72-19,044,278.70-7,919,313.56

Finding the Fourth Proportional to 13,800,147.72, 19,044,278.70 and 7,919,313.56

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Solution

The fourth proportional to 13,800,147.72, 19,044,278.70 and 7,919,313.56 is: 10,928,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800,147.72 : 19,044,278.70 = 7,919,313.56 : x
  2. Step 2: Convert to fraction form
    13,800,147.72/19,044,278.70 = 7,919,313.56/x
  3. Step 3: Cross multiply
    13,800,147.72x = 19,044,278.70 × 7,919,313.56
  4. Step 4: Simplify right side
    13,800,147.72x = 150,817,614,549,329.16
  5. Step 5: Solve for x
    x = 150,817,614,549,329.16/13,800,147.72
  6. Step 6: Final answer
    x = 10,928,695.66

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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.