Home / 12,574,463.82-18,848,266.89-7,171,480.32

Finding the Fourth Proportional to 12,574,463.82, 18,848,266.89 and 7,171,480.32

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Solution

The fourth proportional to 12,574,463.82, 18,848,266.89 and 7,171,480.32 is: 10,749,561.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574,463.82 : 18,848,266.89 = 7,171,480.32 : x
  2. Step 2: Convert to fraction form
    12,574,463.82/18,848,266.89 = 7,171,480.32/x
  3. Step 3: Cross multiply
    12,574,463.82x = 18,848,266.89 × 7,171,480.32
  4. Step 4: Simplify right side
    12,574,463.82x = 135,169,975,067,742.61
  5. Step 5: Solve for x
    x = 135,169,975,067,742.61/12,574,463.82
  6. Step 6: Final answer
    x = 10,749,561.73

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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.