Home / 820,978,749.11-1,132,950,315.94-444,635,354.36

Finding the Fourth Proportional to 820,978,749.11, 1,132,950,315.94 and 444,635,354.36

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Solution

The fourth proportional to 820,978,749.11, 1,132,950,315.94 and 444,635,354.36 is: 613,596,595.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,978,749.11 : 1,132,950,315.94 = 444,635,354.36 : x
  2. Step 2: Convert to fraction form
    820,978,749.11/1,132,950,315.94 = 444,635,354.36/x
  3. Step 3: Cross multiply
    820,978,749.11x = 1,132,950,315.94 × 444,635,354.36
  4. Step 4: Simplify right side
    820,978,749.11x = 503,749,765,201,976,640
  5. Step 5: Solve for x
    x = 503,749,765,201,976,640/820,978,749.11
  6. Step 6: Final answer
    x = 613,596,595.22

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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.