Home / 20,338,100.37-28,066,947.66-11,045,668.59

Finding the Fourth Proportional to 20,338,100.37, 28,066,947.66 and 11,045,668.59

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Solution

The fourth proportional to 20,338,100.37, 28,066,947.66 and 11,045,668.59 is: 15,243,223.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338,100.37 : 28,066,947.66 = 11,045,668.59 : x
  2. Step 2: Convert to fraction form
    20,338,100.37/28,066,947.66 = 11,045,668.59/x
  3. Step 3: Cross multiply
    20,338,100.37x = 28,066,947.66 × 11,045,668.59
  4. Step 4: Simplify right side
    20,338,100.37x = 310,018,202,185,236
  5. Step 5: Solve for x
    x = 310,018,202,185,236/20,338,100.37
  6. Step 6: Final answer
    x = 15,243,223.14

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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.