Home / 12,603,856.40-18,915,115.80-8,342,608.40

Finding the Fourth Proportional to 12,603,856.40, 18,915,115.80 and 8,342,608.40

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Solution

The fourth proportional to 12,603,856.40, 18,915,115.80 and 8,342,608.40 is: 12,520,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603,856.40 : 18,915,115.80 = 8,342,608.40 : x
  2. Step 2: Convert to fraction form
    12,603,856.40/18,915,115.80 = 8,342,608.40/x
  3. Step 3: Cross multiply
    12,603,856.40x = 18,915,115.80 × 8,342,608.40
  4. Step 4: Simplify right side
    12,603,856.40x = 157,801,403,960,052.72
  5. Step 5: Solve for x
    x = 157,801,403,960,052.72/12,603,856.40
  6. Step 6: Final answer
    x = 12,520,089.01

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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.