Home / 769,531,662-1,062,067,151.88-487,299,862.80

Finding the Fourth Proportional to 769,531,662, 1,062,067,151.88 and 487,299,862.80

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Solution

The fourth proportional to 769,531,662, 1,062,067,151.88 and 487,299,862.80 is: 672,545,657.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,531,662 : 1,062,067,151.88 = 487,299,862.80 : x
  2. Step 2: Convert to fraction form
    769,531,662/1,062,067,151.88 = 487,299,862.80/x
  3. Step 3: Cross multiply
    769,531,662x = 1,062,067,151.88 × 487,299,862.80
  4. Step 4: Simplify right side
    769,531,662x = 517,545,177,395,510,784
  5. Step 5: Solve for x
    x = 517,545,177,395,510,784/769,531,662
  6. Step 6: Final answer
    x = 672,545,657.25

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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.