Home / 538,120,650.80-742,606,491.52-290,601,983.36

Finding the Fourth Proportional to 538,120,650.80, 742,606,491.52 and 290,601,983.36

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Solution

The fourth proportional to 538,120,650.80, 742,606,491.52 and 290,601,983.36 is: 401,030,733.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,120,650.80 : 742,606,491.52 = 290,601,983.36 : x
  2. Step 2: Convert to fraction form
    538,120,650.80/742,606,491.52 = 290,601,983.36/x
  3. Step 3: Cross multiply
    538,120,650.80x = 742,606,491.52 × 290,601,983.36
  4. Step 4: Simplify right side
    538,120,650.80x = 215,802,919,291,723,040
  5. Step 5: Solve for x
    x = 215,802,919,291,723,040/538,120,650.80
  6. Step 6: Final answer
    x = 401,030,733.48

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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.