Home / 20,338,098.87-28,066,945.59-11,045,667.09

Finding the Fourth Proportional to 20,338,098.87, 28,066,945.59 and 11,045,667.09

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Solution

The fourth proportional to 20,338,098.87, 28,066,945.59 and 11,045,667.09 is: 15,243,221.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338,098.87 : 28,066,945.59 = 11,045,667.09 : x
  2. Step 2: Convert to fraction form
    20,338,098.87/28,066,945.59 = 11,045,667.09/x
  3. Step 3: Cross multiply
    20,338,098.87x = 28,066,945.59 × 11,045,667.09
  4. Step 4: Simplify right side
    20,338,098.87x = 310,018,137,220,283.62
  5. Step 5: Solve for x
    x = 310,018,137,220,283.62/20,338,098.87
  6. Step 6: Final answer
    x = 15,243,221.07

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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.