Home / 275,986,006.40-413,979,009.60-81,927,372.80

Finding the Fourth Proportional to 275,986,006.40, 413,979,009.60 and 81,927,372.80

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Solution

The fourth proportional to 275,986,006.40, 413,979,009.60 and 81,927,372.80 is: 122,891,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,986,006.40 : 413,979,009.60 = 81,927,372.80 : x
  2. Step 2: Convert to fraction form
    275,986,006.40/413,979,009.60 = 81,927,372.80/x
  3. Step 3: Cross multiply
    275,986,006.40x = 413,979,009.60 × 81,927,372.80
  4. Step 4: Simplify right side
    275,986,006.40x = 33,916,212,650,873,980
  5. Step 5: Solve for x
    x = 33,916,212,650,873,980/275,986,006.40
  6. Step 6: Final answer
    x = 122,891,059.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.