Home / 8,938,708.90-13,408,063.35-8,300,979.70

Finding the Fourth Proportional to 8,938,708.90, 13,408,063.35 and 8,300,979.70

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Solution

The fourth proportional to 8,938,708.90, 13,408,063.35 and 8,300,979.70 is: 12,451,469.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938,708.90 : 13,408,063.35 = 8,300,979.70 : x
  2. Step 2: Convert to fraction form
    8,938,708.90/13,408,063.35 = 8,300,979.70/x
  3. Step 3: Cross multiply
    8,938,708.90x = 13,408,063.35 × 8,300,979.70
  4. Step 4: Simplify right side
    8,938,708.90x = 111,300,061,684,664
  5. Step 5: Solve for x
    x = 111,300,061,684,664/8,938,708.90
  6. Step 6: Final answer
    x = 12,451,469.55

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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.