Home / 13,691,138.70-18,893,052.12-7,494,997.95

Finding the Fourth Proportional to 13,691,138.70, 18,893,052.12 and 7,494,997.95

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Solution

The fourth proportional to 13,691,138.70, 18,893,052.12 and 7,494,997.95 is: 10,342,703.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691,138.70 : 18,893,052.12 = 7,494,997.95 : x
  2. Step 2: Convert to fraction form
    13,691,138.70/18,893,052.12 = 7,494,997.95/x
  3. Step 3: Cross multiply
    13,691,138.70x = 18,893,052.12 × 7,494,997.95
  4. Step 4: Simplify right side
    13,691,138.70x = 141,603,386,908,643.16
  5. Step 5: Solve for x
    x = 141,603,386,908,643.16/13,691,138.70
  6. Step 6: Final answer
    x = 10,342,703.41

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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.