Home / 498,665,536.52-688,145,239.86-278,650,770.44

Finding the Fourth Proportional to 498,665,536.52, 688,145,239.86 and 278,650,770.44

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Solution

The fourth proportional to 498,665,536.52, 688,145,239.86 and 278,650,770.44 is: 384,530,686.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,665,536.52 : 688,145,239.86 = 278,650,770.44 : x
  2. Step 2: Convert to fraction form
    498,665,536.52/688,145,239.86 = 278,650,770.44/x
  3. Step 3: Cross multiply
    498,665,536.52x = 688,145,239.86 × 278,650,770.44
  4. Step 4: Simplify right side
    498,665,536.52x = 191,752,201,261,607,616
  5. Step 5: Solve for x
    x = 191,752,201,261,607,616/498,665,536.52
  6. Step 6: Final answer
    x = 384,530,686.84

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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.