Home / 538,115,963.80-742,600,026-290,597,296.24

Finding the Fourth Proportional to 538,115,963.80, 742,600,026 and 290,597,296.24

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Solution

The fourth proportional to 538,115,963.80, 742,600,026 and 290,597,296.24 is: 401,024,266.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,115,963.80 : 742,600,026 = 290,597,296.24 : x
  2. Step 2: Convert to fraction form
    538,115,963.80/742,600,026 = 290,597,296.24/x
  3. Step 3: Cross multiply
    538,115,963.80x = 742,600,026 × 290,597,296.24
  4. Step 4: Simplify right side
    538,115,963.80x = 215,797,559,743,353,696
  5. Step 5: Solve for x
    x = 215,797,559,743,353,696/538,115,963.80
  6. Step 6: Final answer
    x = 401,024,266.63

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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.