Home / 20,111,812.68-27,752,040.53-11,851,338.72

Finding the Fourth Proportional to 20,111,812.68, 27,752,040.53 and 11,851,338.72

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Solution

The fourth proportional to 20,111,812.68, 27,752,040.53 and 11,851,338.72 is: 16,353,515.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,812.68 : 27,752,040.53 = 11,851,338.72 : x
  2. Step 2: Convert to fraction form
    20,111,812.68/27,752,040.53 = 11,851,338.72/x
  3. Step 3: Cross multiply
    20,111,812.68x = 27,752,040.53 × 11,851,338.72
  4. Step 4: Simplify right side
    20,111,812.68x = 328,898,832,648,106.25
  5. Step 5: Solve for x
    x = 328,898,832,648,106.25/20,111,812.68
  6. Step 6: Final answer
    x = 16,353,515.11

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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.