Home / 440,383,671.73-660,139,173.55-206,796,239.47

Finding the Fourth Proportional to 440,383,671.73, 660,139,173.55 and 206,796,239.47

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Solution

The fourth proportional to 440,383,671.73, 660,139,173.55 and 206,796,239.47 is: 309,989,464.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,383,671.73 : 660,139,173.55 = 206,796,239.47 : x
  2. Step 2: Convert to fraction form
    440,383,671.73/660,139,173.55 = 206,796,239.47/x
  3. Step 3: Cross multiply
    440,383,671.73x = 660,139,173.55 × 206,796,239.47
  4. Step 4: Simplify right side
    440,383,671.73x = 136,514,298,614,806,352
  5. Step 5: Solve for x
    x = 136,514,298,614,806,352/440,383,671.73
  6. Step 6: Final answer
    x = 309,989,464.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.