Home / 538,278,160.38-742,824,186.84-290,759,623.98

Finding the Fourth Proportional to 538,278,160.38, 742,824,186.84 and 290,759,623.98

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Solution

The fourth proportional to 538,278,160.38, 742,824,186.84 and 290,759,623.98 is: 401,248,456.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,278,160.38 : 742,824,186.84 = 290,759,623.98 : x
  2. Step 2: Convert to fraction form
    538,278,160.38/742,824,186.84 = 290,759,623.98/x
  3. Step 3: Cross multiply
    538,278,160.38x = 742,824,186.84 × 290,759,623.98
  4. Step 4: Simplify right side
    538,278,160.38x = 215,983,281,248,847,680
  5. Step 5: Solve for x
    x = 215,983,281,248,847,680/538,278,160.38
  6. Step 6: Final answer
    x = 401,248,456.92

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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.