Home / 15,191,895.40-20,964,814.09-8,222,571.74

Finding the Fourth Proportional to 15,191,895.40, 20,964,814.09 and 8,222,571.74

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Solution

The fourth proportional to 15,191,895.40, 20,964,814.09 and 8,222,571.74 is: 11,347,148.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191,895.40 : 20,964,814.09 = 8,222,571.74 : x
  2. Step 2: Convert to fraction form
    15,191,895.40/20,964,814.09 = 8,222,571.74/x
  3. Step 3: Cross multiply
    15,191,895.40x = 20,964,814.09 × 8,222,571.74
  4. Step 4: Simplify right side
    15,191,895.40x = 172,384,687,870,787.81
  5. Step 5: Solve for x
    x = 172,384,687,870,787.81/15,191,895.40
  6. Step 6: Final answer
    x = 11,347,148.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.