Home / 320,789,860.74-442,690,335.45-174,112,174.98

Finding the Fourth Proportional to 320,789,860.74, 442,690,335.45 and 174,112,174.98

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Solution

The fourth proportional to 320,789,860.74, 442,690,335.45 and 174,112,174.98 is: 240,274,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,789,860.74 : 442,690,335.45 = 174,112,174.98 : x
  2. Step 2: Convert to fraction form
    320,789,860.74/442,690,335.45 = 174,112,174.98/x
  3. Step 3: Cross multiply
    320,789,860.74x = 442,690,335.45 × 174,112,174.98
  4. Step 4: Simplify right side
    320,789,860.74x = 77,077,777,147,825,296
  5. Step 5: Solve for x
    x = 77,077,777,147,825,296/320,789,860.74
  6. Step 6: Final answer
    x = 240,274,979.30

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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.