Home / 13,611,372.32-20,426,488.10-5,413,174.40

Finding the Fourth Proportional to 13,611,372.32, 20,426,488.10 and 5,413,174.40

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Solution

The fourth proportional to 13,611,372.32, 20,426,488.10 and 5,413,174.40 is: 8,123,511.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611,372.32 : 20,426,488.10 = 5,413,174.40 : x
  2. Step 2: Convert to fraction form
    13,611,372.32/20,426,488.10 = 5,413,174.40/x
  3. Step 3: Cross multiply
    13,611,372.32x = 20,426,488.10 × 5,413,174.40
  4. Step 4: Simplify right side
    13,611,372.32x = 110,572,142,335,626.31
  5. Step 5: Solve for x
    x = 110,572,142,335,626.31/13,611,372.32
  6. Step 6: Final answer
    x = 8,123,511.71

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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.