Home / 13,702,238.89-18,906,686.37-7,819,187.02

Finding the Fourth Proportional to 13,702,238.89, 18,906,686.37 and 7,819,187.02

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Solution

The fourth proportional to 13,702,238.89, 18,906,686.37 and 7,819,187.02 is: 10,789,106.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702,238.89 : 18,906,686.37 = 7,819,187.02 : x
  2. Step 2: Convert to fraction form
    13,702,238.89/18,906,686.37 = 7,819,187.02/x
  3. Step 3: Cross multiply
    13,702,238.89x = 18,906,686.37 × 7,819,187.02
  4. Step 4: Simplify right side
    13,702,238.89x = 147,834,916,614,376.31
  5. Step 5: Solve for x
    x = 147,834,916,614,376.31/13,702,238.89
  6. Step 6: Final answer
    x = 10,789,106.64

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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.