Home / 12,603,904.90-18,915,188.55-8,342,656.90

Finding the Fourth Proportional to 12,603,904.90, 18,915,188.55 and 8,342,656.90

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Solution

The fourth proportional to 12,603,904.90, 18,915,188.55 and 8,342,656.90 is: 12,520,161.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603,904.90 : 18,915,188.55 = 8,342,656.90 : x
  2. Step 2: Convert to fraction form
    12,603,904.90/18,915,188.55 = 8,342,656.90/x
  3. Step 3: Cross multiply
    12,603,904.90x = 18,915,188.55 × 8,342,656.90
  4. Step 4: Simplify right side
    12,603,904.90x = 157,802,928,271,458.50
  5. Step 5: Solve for x
    x = 157,802,928,271,458.50/12,603,904.90
  6. Step 6: Final answer
    x = 12,520,161.77

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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.