Home / 21,789,956.20-32,681,435.10-6,640,364.20

Finding the Fourth Proportional to 21,789,956.20, 32,681,435.10 and 6,640,364.20

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Solution

The fourth proportional to 21,789,956.20, 32,681,435.10 and 6,640,364.20 is: 9,959,479.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789,956.20 : 32,681,435.10 = 6,640,364.20 : x
  2. Step 2: Convert to fraction form
    21,789,956.20/32,681,435.10 = 6,640,364.20/x
  3. Step 3: Cross multiply
    21,789,956.20x = 32,681,435.10 × 6,640,364.20
  4. Step 4: Simplify right side
    21,789,956.20x = 217,016,631,642,663.44
  5. Step 5: Solve for x
    x = 217,016,631,642,663.44/21,789,956.20
  6. Step 6: Final answer
    x = 9,959,479.94

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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.