Home / 20,368,929-28,108,561.26-11,201,571.96

Finding the Fourth Proportional to 20,368,929, 28,108,561.26 and 11,201,571.96

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Solution

The fourth proportional to 20,368,929, 28,108,561.26 and 11,201,571.96 is: 15,457,860.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,929 : 28,108,561.26 = 11,201,571.96 : x
  2. Step 2: Convert to fraction form
    20,368,929/28,108,561.26 = 11,201,571.96/x
  3. Step 3: Cross multiply
    20,368,929x = 28,108,561.26 × 11,201,571.96
  4. Step 4: Simplify right side
    20,368,929x = 314,860,071,645,958.31
  5. Step 5: Solve for x
    x = 314,860,071,645,958.31/20,368,929
  6. Step 6: Final answer
    x = 15,457,860.92

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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.