Home / 290,738,208.79-401,252,648.13-165,309,198.46

Finding the Fourth Proportional to 290,738,208.79, 401,252,648.13 and 165,309,198.46

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Solution

The fourth proportional to 290,738,208.79, 401,252,648.13 and 165,309,198.46 is: 228,145,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,738,208.79 : 401,252,648.13 = 165,309,198.46 : x
  2. Step 2: Convert to fraction form
    290,738,208.79/401,252,648.13 = 165,309,198.46/x
  3. Step 3: Cross multiply
    290,738,208.79x = 401,252,648.13 × 165,309,198.46
  4. Step 4: Simplify right side
    290,738,208.79x = 66,330,753,641,319,592
  5. Step 5: Solve for x
    x = 66,330,753,641,319,592/290,738,208.79
  6. Step 6: Final answer
    x = 228,145,980.25

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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.