Home / 320,789,858.74-442,690,332.69-174,112,172.98

Finding the Fourth Proportional to 320,789,858.74, 442,690,332.69 and 174,112,172.98

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Solution

The fourth proportional to 320,789,858.74, 442,690,332.69 and 174,112,172.98 is: 240,274,976.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,789,858.74 : 442,690,332.69 = 174,112,172.98 : x
  2. Step 2: Convert to fraction form
    320,789,858.74/442,690,332.69 = 174,112,172.98/x
  3. Step 3: Cross multiply
    320,789,858.74x = 442,690,332.69 × 174,112,172.98
  4. Step 4: Simplify right side
    320,789,858.74x = 77,077,775,781,895,024
  5. Step 5: Solve for x
    x = 77,077,775,781,895,024/320,789,858.74
  6. Step 6: Final answer
    x = 240,274,976.54

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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.