Home / 12,603,753.60-18,872,452.80-9,219,638.40

Finding the Fourth Proportional to 12,603,753.60, 18,872,452.80 and 9,219,638.40

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Solution

The fourth proportional to 12,603,753.60, 18,872,452.80 and 9,219,638.40 is: 13,805,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603,753.60 : 18,872,452.80 = 9,219,638.40 : x
  2. Step 2: Convert to fraction form
    12,603,753.60/18,872,452.80 = 9,219,638.40/x
  3. Step 3: Cross multiply
    12,603,753.60x = 18,872,452.80 × 9,219,638.40
  4. Step 4: Simplify right side
    12,603,753.60x = 173,997,190,537,067.53
  5. Step 5: Solve for x
    x = 173,997,190,537,067.53/12,603,753.60
  6. Step 6: Final answer
    x = 13,805,188.20

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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.