Home / 13,902,974.70-20,854,462.05-12,895,205.10

Finding the Fourth Proportional to 13,902,974.70, 20,854,462.05 and 12,895,205.10

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Solution

The fourth proportional to 13,902,974.70, 20,854,462.05 and 12,895,205.10 is: 19,342,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902,974.70 : 20,854,462.05 = 12,895,205.10 : x
  2. Step 2: Convert to fraction form
    13,902,974.70/20,854,462.05 = 12,895,205.10/x
  3. Step 3: Cross multiply
    13,902,974.70x = 20,854,462.05 × 12,895,205.10
  4. Step 4: Simplify right side
    13,902,974.70x = 268,922,565,384,916.47
  5. Step 5: Solve for x
    x = 268,922,565,384,916.47/13,902,974.70
  6. Step 6: Final answer
    x = 19,342,807.65

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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.