Home / 13,603,181.10-18,772,409.82-7,408,240.98

Finding the Fourth Proportional to 13,603,181.10, 18,772,409.82 and 7,408,240.98

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Solution

The fourth proportional to 13,603,181.10, 18,772,409.82 and 7,408,240.98 is: 10,223,383.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603,181.10 : 18,772,409.82 = 7,408,240.98 : x
  2. Step 2: Convert to fraction form
    13,603,181.10/18,772,409.82 = 7,408,240.98/x
  3. Step 3: Cross multiply
    13,603,181.10x = 18,772,409.82 × 7,408,240.98
  4. Step 4: Simplify right side
    13,603,181.10x = 139,070,535,721,878.44
  5. Step 5: Solve for x
    x = 139,070,535,721,878.44/13,603,181.10
  6. Step 6: Final answer
    x = 10,223,383.39

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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.