Home / 440,383,317.59-660,138,643.47-206,795,885.06

Finding the Fourth Proportional to 440,383,317.59, 660,138,643.47 and 206,795,885.06

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Solution

The fourth proportional to 440,383,317.59, 660,138,643.47 and 206,795,885.06 is: 309,988,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,383,317.59 : 660,138,643.47 = 206,795,885.06 : x
  2. Step 2: Convert to fraction form
    440,383,317.59/660,138,643.47 = 206,795,885.06/x
  3. Step 3: Cross multiply
    440,383,317.59x = 660,138,643.47 × 206,795,885.06
  4. Step 4: Simplify right side
    440,383,317.59x = 136,513,955,040,336,800
  5. Step 5: Solve for x
    x = 136,513,955,040,336,800/440,383,317.59
  6. Step 6: Final answer
    x = 309,988,933.70

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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.