Home / 38,765,109.41-53,496,209.76-21,362,077.43

Finding the Fourth Proportional to 38,765,109.41, 53,496,209.76 and 21,362,077.43

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Solution

The fourth proportional to 38,765,109.41, 53,496,209.76 and 21,362,077.43 is: 29,479,864.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765,109.41 : 53,496,209.76 = 21,362,077.43 : x
  2. Step 2: Convert to fraction form
    38,765,109.41/53,496,209.76 = 21,362,077.43/x
  3. Step 3: Cross multiply
    38,765,109.41x = 53,496,209.76 × 21,362,077.43
  4. Step 4: Simplify right side
    38,765,109.41x = 1,142,790,175,238,382.25
  5. Step 5: Solve for x
    x = 1,142,790,175,238,382.25/38,765,109.41
  6. Step 6: Final answer
    x = 29,479,864.56

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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.