Home / 538,272,963.96-742,816,988.82-290,754,319.56

Finding the Fourth Proportional to 538,272,963.96, 742,816,988.82 and 290,754,319.56

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Solution

The fourth proportional to 538,272,963.96, 742,816,988.82 and 290,754,319.56 is: 401,241,122.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,272,963.96 : 742,816,988.82 = 290,754,319.56 : x
  2. Step 2: Convert to fraction form
    538,272,963.96/742,816,988.82 = 290,754,319.56/x
  3. Step 3: Cross multiply
    538,272,963.96x = 742,816,988.82 × 290,754,319.56
  4. Step 4: Simplify right side
    538,272,963.96x = 215,977,248,141,967,232
  5. Step 5: Solve for x
    x = 215,977,248,141,967,232/538,272,963.96
  6. Step 6: Final answer
    x = 401,241,122.26

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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.