Home / 756,918,363.72-1,135,372,781.24-407,329,104.36

Finding the Fourth Proportional to 756,918,363.72, 1,135,372,781.24 and 407,329,104.36

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Solution

The fourth proportional to 756,918,363.72, 1,135,372,781.24 and 407,329,104.36 is: 610,991,092.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,918,363.72 : 1,135,372,781.24 = 407,329,104.36 : x
  2. Step 2: Convert to fraction form
    756,918,363.72/1,135,372,781.24 = 407,329,104.36/x
  3. Step 3: Cross multiply
    756,918,363.72x = 1,135,372,781.24 × 407,329,104.36
  4. Step 4: Simplify right side
    756,918,363.72x = 462,470,378,097,211,456
  5. Step 5: Solve for x
    x = 462,470,378,097,211,456/756,918,363.72
  6. Step 6: Final answer
    x = 610,991,092.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.