Home / 38,654,570-53,341,947.42-21,250,788.50

Finding the Fourth Proportional to 38,654,570, 53,341,947.42 and 21,250,788.50

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Solution

The fourth proportional to 38,654,570, 53,341,947.42 and 21,250,788.50 is: 29,325,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,654,570 : 53,341,947.42 = 21,250,788.50 : x
  2. Step 2: Convert to fraction form
    38,654,570/53,341,947.42 = 21,250,788.50/x
  3. Step 3: Cross multiply
    38,654,570x = 53,341,947.42 × 21,250,788.50
  4. Step 4: Simplify right side
    38,654,570x = 1,133,558,442,800,540.75
  5. Step 5: Solve for x
    x = 1,133,558,442,800,540.75/38,654,570
  6. Step 6: Final answer
    x = 29,325,340.91

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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.