Home / 18,676,693.80-28,015,040.70-11,464,842.60

Finding the Fourth Proportional to 18,676,693.80, 28,015,040.70 and 11,464,842.60

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Solution

The fourth proportional to 18,676,693.80, 28,015,040.70 and 11,464,842.60 is: 17,197,263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676,693.80 : 28,015,040.70 = 11,464,842.60 : x
  2. Step 2: Convert to fraction form
    18,676,693.80/28,015,040.70 = 11,464,842.60/x
  3. Step 3: Cross multiply
    18,676,693.80x = 28,015,040.70 × 11,464,842.60
  4. Step 4: Simplify right side
    18,676,693.80x = 321,188,032,058,093.81
  5. Step 5: Solve for x
    x = 321,188,032,058,093.81/18,676,693.80
  6. Step 6: Final answer
    x = 17,197,263.90

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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.