Home / 20,328,986.54-28,054,022.56-12,070,697.96

Finding the Fourth Proportional to 20,328,986.54, 28,054,022.56 and 12,070,697.96

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Solution

The fourth proportional to 20,328,986.54, 28,054,022.56 and 12,070,697.96 is: 16,657,575.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328,986.54 : 28,054,022.56 = 12,070,697.96 : x
  2. Step 2: Convert to fraction form
    20,328,986.54/28,054,022.56 = 12,070,697.96/x
  3. Step 3: Cross multiply
    20,328,986.54x = 28,054,022.56 × 12,070,697.96
  4. Step 4: Simplify right side
    20,328,986.54x = 338,631,632,884,786
  5. Step 5: Solve for x
    x = 338,631,632,884,786/20,328,986.54
  6. Step 6: Final answer
    x = 16,657,575.73

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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.