Home / 479,393,284.38-661,374,500.97-278,415,946.47

Finding the Fourth Proportional to 479,393,284.38, 661,374,500.97 and 278,415,946.47

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Solution

The fourth proportional to 479,393,284.38, 661,374,500.97 and 278,415,946.47 is: 384,104,687.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,393,284.38 : 661,374,500.97 = 278,415,946.47 : x
  2. Step 2: Convert to fraction form
    479,393,284.38/661,374,500.97 = 278,415,946.47/x
  3. Step 3: Cross multiply
    479,393,284.38x = 661,374,500.97 × 278,415,946.47
  4. Step 4: Simplify right side
    479,393,284.38x = 184,137,207,658,686,496
  5. Step 5: Solve for x
    x = 184,137,207,658,686,496/479,393,284.38
  6. Step 6: Final answer
    x = 384,104,687.44

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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.