Home / 38,654,571-53,341,948.80-21,250,789.50

Finding the Fourth Proportional to 38,654,571, 53,341,948.80 and 21,250,789.50

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Solution

The fourth proportional to 38,654,571, 53,341,948.80 and 21,250,789.50 is: 29,325,342.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,654,571 : 53,341,948.80 = 21,250,789.50 : x
  2. Step 2: Convert to fraction form
    38,654,571/53,341,948.80 = 21,250,789.50/x
  3. Step 3: Cross multiply
    38,654,571x = 53,341,948.80 × 21,250,789.50
  4. Step 4: Simplify right side
    38,654,571x = 1,133,558,525,468,577.50
  5. Step 5: Solve for x
    x = 1,133,558,525,468,577.50/38,654,571
  6. Step 6: Final answer
    x = 29,325,342.29

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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.