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Finding the Fourth Proportional to 8,000,619.66, 12,001,658.67 and 2,607,885.90

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Solution

The fourth proportional to 8,000,619.66, 12,001,658.67 and 2,607,885.90 is: 3,912,066.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000,619.66 : 12,001,658.67 = 2,607,885.90 : x
  2. Step 2: Convert to fraction form
    8,000,619.66/12,001,658.67 = 2,607,885.90/x
  3. Step 3: Cross multiply
    8,000,619.66x = 12,001,658.67 × 2,607,885.90
  4. Step 4: Simplify right side
    8,000,619.66x = 31,298,956,422,105.75
  5. Step 5: Solve for x
    x = 31,298,956,422,105.75/8,000,619.66
  6. Step 6: Final answer
    x = 3,912,066.53

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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.