Home / 290,942,373.80-401,509,844.17-165,491,354.18

Finding the Fourth Proportional to 290,942,373.80, 401,509,844.17 and 165,491,354.18

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Solution

The fourth proportional to 290,942,373.80, 401,509,844.17 and 165,491,354.18 is: 228,383,397.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,942,373.80 : 401,509,844.17 = 165,491,354.18 : x
  2. Step 2: Convert to fraction form
    290,942,373.80/401,509,844.17 = 165,491,354.18/x
  3. Step 3: Cross multiply
    290,942,373.80x = 401,509,844.17 × 165,491,354.18
  4. Step 4: Simplify right side
    290,942,373.80x = 66,446,407,825,872,808
  5. Step 5: Solve for x
    x = 66,446,407,825,872,808/290,942,373.80
  6. Step 6: Final answer
    x = 228,383,397.58

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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.