Home / 538,278,681.60-742,824,466.56-290,760,042.24

Finding the Fourth Proportional to 538,278,681.60, 742,824,466.56 and 290,760,042.24

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Solution

The fourth proportional to 538,278,681.60, 742,824,466.56 and 290,760,042.24 is: 401,248,796.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,278,681.60 : 742,824,466.56 = 290,760,042.24 : x
  2. Step 2: Convert to fraction form
    538,278,681.60/742,824,466.56 = 290,760,042.24/x
  3. Step 3: Cross multiply
    538,278,681.60x = 742,824,466.56 × 290,760,042.24
  4. Step 4: Simplify right side
    538,278,681.60x = 215,983,673,273,891,072
  5. Step 5: Solve for x
    x = 215,983,673,273,891,072/538,278,681.60
  6. Step 6: Final answer
    x = 401,248,796.69

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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.