Home / 20,512,293.85-28,307,050.80-11,093,084.83

Finding the Fourth Proportional to 20,512,293.85, 28,307,050.80 and 11,093,084.83

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Solution

The fourth proportional to 20,512,293.85, 28,307,050.80 and 11,093,084.83 is: 15,308,503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512,293.85 : 28,307,050.80 = 11,093,084.83 : x
  2. Step 2: Convert to fraction form
    20,512,293.85/28,307,050.80 = 11,093,084.83/x
  3. Step 3: Cross multiply
    20,512,293.85x = 28,307,050.80 × 11,093,084.83
  4. Step 4: Simplify right side
    20,512,293.85x = 314,012,515,811,519.38
  5. Step 5: Solve for x
    x = 314,012,515,811,519.38/20,512,293.85
  6. Step 6: Final answer
    x = 15,308,503.19

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1.5x scale

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.