Home / 21,008,762.07-28,992,033.39-11,716,340.91

Finding the Fourth Proportional to 21,008,762.07, 28,992,033.39 and 11,716,340.91

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Solution

The fourth proportional to 21,008,762.07, 28,992,033.39 and 11,716,340.91 is: 16,168,517.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,762.07 : 28,992,033.39 = 11,716,340.91 : x
  2. Step 2: Convert to fraction form
    21,008,762.07/28,992,033.39 = 11,716,340.91/x
  3. Step 3: Cross multiply
    21,008,762.07x = 28,992,033.39 × 11,716,340.91
  4. Step 4: Simplify right side
    21,008,762.07x = 339,680,546,871,343
  5. Step 5: Solve for x
    x = 339,680,546,871,343/21,008,762.07
  6. Step 6: Final answer
    x = 16,168,517.96

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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.