Home / 538,278,157.38-742,824,182.70-290,759,620.98

Finding the Fourth Proportional to 538,278,157.38, 742,824,182.70 and 290,759,620.98

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Solution

The fourth proportional to 538,278,157.38, 742,824,182.70 and 290,759,620.98 is: 401,248,452.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,278,157.38 : 742,824,182.70 = 290,759,620.98 : x
  2. Step 2: Convert to fraction form
    538,278,157.38/742,824,182.70 = 290,759,620.98/x
  3. Step 3: Cross multiply
    538,278,157.38x = 742,824,182.70 × 290,759,620.98
  4. Step 4: Simplify right side
    538,278,157.38x = 215,983,277,816,630,304
  5. Step 5: Solve for x
    x = 215,983,277,816,630,304/538,278,157.38
  6. Step 6: Final answer
    x = 401,248,452.78

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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.