Home / 14,405,713.28-19,880,357.70-7,879,342.52

Finding the Fourth Proportional to 14,405,713.28, 19,880,357.70 and 7,879,342.52

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Solution

The fourth proportional to 14,405,713.28, 19,880,357.70 and 7,879,342.52 is: 10,873,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,405,713.28 : 19,880,357.70 = 7,879,342.52 : x
  2. Step 2: Convert to fraction form
    14,405,713.28/19,880,357.70 = 7,879,342.52/x
  3. Step 3: Cross multiply
    14,405,713.28x = 19,880,357.70 × 7,879,342.52
  4. Step 4: Simplify right side
    14,405,713.28x = 156,644,147,738,419.38
  5. Step 5: Solve for x
    x = 156,644,147,738,419.38/14,405,713.28
  6. Step 6: Final answer
    x = 10,873,751.60

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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.