Home / 13,729,670.52-18,945,692.95-8,146,954.86

Finding the Fourth Proportional to 13,729,670.52, 18,945,692.95 and 8,146,954.86

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Solution

The fourth proportional to 13,729,670.52, 18,945,692.95 and 8,146,954.86 is: 11,242,054.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,670.52 : 18,945,692.95 = 8,146,954.86 : x
  2. Step 2: Convert to fraction form
    13,729,670.52/18,945,692.95 = 8,146,954.86/x
  3. Step 3: Cross multiply
    13,729,670.52x = 18,945,692.95 × 8,146,954.86
  4. Step 4: Simplify right side
    13,729,670.52x = 154,349,705,361,703.69
  5. Step 5: Solve for x
    x = 154,349,705,361,703.69/13,729,670.52
  6. Step 6: Final answer
    x = 11,242,054.58

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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.