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Finding the Fourth Proportional to 14,195,978.20, 21,309,713.70 and 8,810,709.40

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Solution

The fourth proportional to 14,195,978.20, 21,309,713.70 and 8,810,709.40 is: 13,225,837.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,195,978.20 : 21,309,713.70 = 8,810,709.40 : x
  2. Step 2: Convert to fraction form
    14,195,978.20/21,309,713.70 = 8,810,709.40/x
  3. Step 3: Cross multiply
    14,195,978.20x = 21,309,713.70 × 8,810,709.40
  4. Step 4: Simplify right side
    14,195,978.20x = 187,753,694,807,898.78
  5. Step 5: Solve for x
    x = 187,753,694,807,898.78/14,195,978.20
  6. Step 6: Final answer
    x = 13,225,837.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.