Home / 699,236,292.49-964,945,932.65-385,970,425.45

Finding the Fourth Proportional to 699,236,292.49, 964,945,932.65 and 385,970,425.45

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Solution

The fourth proportional to 699,236,292.49, 964,945,932.65 and 385,970,425.45 is: 532,639,103.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,236,292.49 : 964,945,932.65 = 385,970,425.45 : x
  2. Step 2: Convert to fraction form
    699,236,292.49/964,945,932.65 = 385,970,425.45/x
  3. Step 3: Cross multiply
    699,236,292.49x = 964,945,932.65 × 385,970,425.45
  4. Step 4: Simplify right side
    699,236,292.49x = 372,440,592,158,272,704
  5. Step 5: Solve for x
    x = 372,440,592,158,272,704/699,236,292.49
  6. Step 6: Final answer
    x = 532,639,103.78

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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.