Home / 360,121,378.45-496,693,308.79-309,970,952.04

Finding the Fourth Proportional to 360,121,378.45, 496,693,308.79 and 309,970,952.04

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Solution

The fourth proportional to 360,121,378.45, 496,693,308.79 and 309,970,952.04 is: 427,523,904.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,121,378.45 : 496,693,308.79 = 309,970,952.04 : x
  2. Step 2: Convert to fraction form
    360,121,378.45/496,693,308.79 = 309,970,952.04/x
  3. Step 3: Cross multiply
    360,121,378.45x = 496,693,308.79 × 309,970,952.04
  4. Step 4: Simplify right side
    360,121,378.45x = 153,960,497,794,956,672
  5. Step 5: Solve for x
    x = 153,960,497,794,956,672/360,121,378.45
  6. Step 6: Final answer
    x = 427,523,904.46

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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.