Home / 13,702,238.79-18,906,686.24-7,819,186.92

Finding the Fourth Proportional to 13,702,238.79, 18,906,686.24 and 7,819,186.92

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Solution

The fourth proportional to 13,702,238.79, 18,906,686.24 and 7,819,186.92 is: 10,789,106.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702,238.79 : 18,906,686.24 = 7,819,186.92 : x
  2. Step 2: Convert to fraction form
    13,702,238.79/18,906,686.24 = 7,819,186.92/x
  3. Step 3: Cross multiply
    13,702,238.79x = 18,906,686.24 × 7,819,186.92
  4. Step 4: Simplify right side
    13,702,238.79x = 147,834,913,819,876.50
  5. Step 5: Solve for x
    x = 147,834,913,819,876.50/13,702,238.79
  6. Step 6: Final answer
    x = 10,789,106.51

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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.