Home / 20,238,058.81-27,928,742.75-11,070,701.65

Finding the Fourth Proportional to 20,238,058.81, 27,928,742.75 and 11,070,701.65

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Solution

The fourth proportional to 20,238,058.81, 27,928,742.75 and 11,070,701.65 is: 15,277,689.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238,058.81 : 27,928,742.75 = 11,070,701.65 : x
  2. Step 2: Convert to fraction form
    20,238,058.81/27,928,742.75 = 11,070,701.65/x
  3. Step 3: Cross multiply
    20,238,058.81x = 27,928,742.75 × 11,070,701.65
  4. Step 4: Simplify right side
    20,238,058.81x = 309,190,778,444,850.56
  5. Step 5: Solve for x
    x = 309,190,778,444,850.56/20,238,058.81
  6. Step 6: Final answer
    x = 15,277,689.49

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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.