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Finding the Fourth Proportional to 9,789,808.20, 14,684,712.30 and 8,698,057.80

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Solution

The fourth proportional to 9,789,808.20, 14,684,712.30 and 8,698,057.80 is: 13,047,086.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789,808.20 : 14,684,712.30 = 8,698,057.80 : x
  2. Step 2: Convert to fraction form
    9,789,808.20/14,684,712.30 = 8,698,057.80/x
  3. Step 3: Cross multiply
    9,789,808.20x = 14,684,712.30 × 8,698,057.80
  4. Step 4: Simplify right side
    9,789,808.20x = 127,728,476,361,770.95
  5. Step 5: Solve for x
    x = 127,728,476,361,770.95/9,789,808.20
  6. Step 6: Final answer
    x = 13,047,086.70

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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.