Home / 12,720,961.40-19,071,406.38-6,327,724.28

Finding the Fourth Proportional to 12,720,961.40, 19,071,406.38 and 6,327,724.28

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Solution

The fourth proportional to 12,720,961.40, 19,071,406.38 and 6,327,724.28 is: 9,486,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720,961.40 : 19,071,406.38 = 6,327,724.28 : x
  2. Step 2: Convert to fraction form
    12,720,961.40/19,071,406.38 = 6,327,724.28/x
  3. Step 3: Cross multiply
    12,720,961.40x = 19,071,406.38 × 6,327,724.28
  4. Step 4: Simplify right side
    12,720,961.40x = 120,678,601,204,472.91
  5. Step 5: Solve for x
    x = 120,678,601,204,472.91/12,720,961.40
  6. Step 6: Final answer
    x = 9,486,594.40

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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.