Home / 13,558,179.18-18,705,735.09-7,677,009.75

Finding the Fourth Proportional to 13,558,179.18, 18,705,735.09 and 7,677,009.75

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Solution

The fourth proportional to 13,558,179.18, 18,705,735.09 and 7,677,009.75 is: 10,591,695.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558,179.18 : 18,705,735.09 = 7,677,009.75 : x
  2. Step 2: Convert to fraction form
    13,558,179.18/18,705,735.09 = 7,677,009.75/x
  3. Step 3: Cross multiply
    13,558,179.18x = 18,705,735.09 × 7,677,009.75
  4. Step 4: Simplify right side
    13,558,179.18x = 143,604,110,666,847.12
  5. Step 5: Solve for x
    x = 143,604,110,666,847.12/13,558,179.18
  6. Step 6: Final answer
    x = 10,591,695.89

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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.