Home / 12,463,601.70-18,695,402.55-7,791,003.30

Finding the Fourth Proportional to 12,463,601.70, 18,695,402.55 and 7,791,003.30

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Solution

The fourth proportional to 12,463,601.70, 18,695,402.55 and 7,791,003.30 is: 11,686,504.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463,601.70 : 18,695,402.55 = 7,791,003.30 : x
  2. Step 2: Convert to fraction form
    12,463,601.70/18,695,402.55 = 7,791,003.30/x
  3. Step 3: Cross multiply
    12,463,601.70x = 18,695,402.55 × 7,791,003.30
  4. Step 4: Simplify right side
    12,463,601.70x = 145,655,942,961,878.41
  5. Step 5: Solve for x
    x = 145,655,942,961,878.41/12,463,601.70
  6. Step 6: Final answer
    x = 11,686,504.95

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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.