Home / 13,328,112.80-18,379,048.56-11,400,753.44

Finding the Fourth Proportional to 13,328,112.80, 18,379,048.56 and 11,400,753.44

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Solution

The fourth proportional to 13,328,112.80, 18,379,048.56 and 11,400,753.44 is: 15,721,280.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328,112.80 : 18,379,048.56 = 11,400,753.44 : x
  2. Step 2: Convert to fraction form
    13,328,112.80/18,379,048.56 = 11,400,753.44/x
  3. Step 3: Cross multiply
    13,328,112.80x = 18,379,048.56 × 11,400,753.44
  4. Step 4: Simplify right side
    13,328,112.80x = 209,535,001,094,347.03
  5. Step 5: Solve for x
    x = 209,535,001,094,347.03/13,328,112.80
  6. Step 6: Final answer
    x = 15,721,280.59

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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.