Home / 512,191,584.96-706,529,344.80-308,365,039.20

Finding the Fourth Proportional to 512,191,584.96, 706,529,344.80 and 308,365,039.20

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Solution

The fourth proportional to 512,191,584.96, 706,529,344.80 and 308,365,039.20 is: 425,366,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,191,584.96 : 706,529,344.80 = 308,365,039.20 : x
  2. Step 2: Convert to fraction form
    512,191,584.96/706,529,344.80 = 308,365,039.20/x
  3. Step 3: Cross multiply
    512,191,584.96x = 706,529,344.80 × 308,365,039.20
  4. Step 4: Simplify right side
    512,191,584.96x = 217,868,949,105,202,304
  5. Step 5: Solve for x
    x = 217,868,949,105,202,304/512,191,584.96
  6. Step 6: Final answer
    x = 425,366,123.74

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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.