Home / 320,789,861.49-442,690,336.49-174,112,175.73

Finding the Fourth Proportional to 320,789,861.49, 442,690,336.49 and 174,112,175.73

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Solution

The fourth proportional to 320,789,861.49, 442,690,336.49 and 174,112,175.73 is: 240,274,980.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,789,861.49 : 442,690,336.49 = 174,112,175.73 : x
  2. Step 2: Convert to fraction form
    320,789,861.49/442,690,336.49 = 174,112,175.73/x
  3. Step 3: Cross multiply
    320,789,861.49x = 442,690,336.49 × 174,112,175.73
  4. Step 4: Simplify right side
    320,789,861.49x = 77,077,777,660,049,152
  5. Step 5: Solve for x
    x = 77,077,777,660,049,152/320,789,861.49
  6. Step 6: Final answer
    x = 240,274,980.33

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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.