Home / 13,780,056.75-20,656,190.06-8,666,141.41

Finding the Fourth Proportional to 13,780,056.75, 20,656,190.06 and 8,666,141.41

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Solution

The fourth proportional to 13,780,056.75, 20,656,190.06 and 8,666,141.41 is: 12,990,473.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780,056.75 : 20,656,190.06 = 8,666,141.41 : x
  2. Step 2: Convert to fraction form
    13,780,056.75/20,656,190.06 = 8,666,141.41/x
  3. Step 3: Cross multiply
    13,780,056.75x = 20,656,190.06 × 8,666,141.41
  4. Step 4: Simplify right side
    13,780,056.75x = 179,009,464,051,796.38
  5. Step 5: Solve for x
    x = 179,009,464,051,796.38/13,780,056.75
  6. Step 6: Final answer
    x = 12,990,473.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.