Home / 479,393,280.38-661,374,495.44-278,415,942.48

Finding the Fourth Proportional to 479,393,280.38, 661,374,495.44 and 278,415,942.48

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Solution

The fourth proportional to 479,393,280.38, 661,374,495.44 and 278,415,942.48 is: 384,104,681.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,393,280.38 : 661,374,495.44 = 278,415,942.48 : x
  2. Step 2: Convert to fraction form
    479,393,280.38/661,374,495.44 = 278,415,942.48/x
  3. Step 3: Cross multiply
    479,393,280.38x = 661,374,495.44 × 278,415,942.48
  4. Step 4: Simplify right side
    479,393,280.38x = 184,137,203,480,162,080
  5. Step 5: Solve for x
    x = 184,137,203,480,162,080/479,393,280.38
  6. Step 6: Final answer
    x = 384,104,681.93

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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.