Home / 15,312,823.71-21,133,185.88-11,438,618.82

Finding the Fourth Proportional to 15,312,823.71, 21,133,185.88 and 11,438,618.82

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Solution

The fourth proportional to 15,312,823.71, 21,133,185.88 and 11,438,618.82 is: 15,786,406.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312,823.71 : 21,133,185.88 = 11,438,618.82 : x
  2. Step 2: Convert to fraction form
    15,312,823.71/21,133,185.88 = 11,438,618.82/x
  3. Step 3: Cross multiply
    15,312,823.71x = 21,133,185.88 × 11,438,618.82
  4. Step 4: Simplify right side
    15,312,823.71x = 241,734,457,647,127.69
  5. Step 5: Solve for x
    x = 241,734,457,647,127.69/15,312,823.71
  6. Step 6: Final answer
    x = 15,786,406.37

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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.