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Finding the Fourth Proportional to 9,867,820.40, 14,780,735.40 and 8,188,204.40

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Solution

The fourth proportional to 9,867,820.40, 14,780,735.40 and 8,188,204.40 is: 12,264,885.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,867,820.40 : 14,780,735.40 = 8,188,204.40 : x
  2. Step 2: Convert to fraction form
    9,867,820.40/14,780,735.40 = 8,188,204.40/x
  3. Step 3: Cross multiply
    9,867,820.40x = 14,780,735.40 × 8,188,204.40
  4. Step 4: Simplify right side
    9,867,820.40x = 121,027,682,637,515.77
  5. Step 5: Solve for x
    x = 121,027,682,637,515.77/9,867,820.40
  6. Step 6: Final answer
    x = 12,264,885.02

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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.