Home / 901,605,355.52-1,244,346,744.89-505,155,142.64

Finding the Fourth Proportional to 901,605,355.52, 1,244,346,744.89 and 505,155,142.64

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Solution

The fourth proportional to 901,605,355.52, 1,244,346,744.89 and 505,155,142.64 is: 697,187,692.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,605,355.52 : 1,244,346,744.89 = 505,155,142.64 : x
  2. Step 2: Convert to fraction form
    901,605,355.52/1,244,346,744.89 = 505,155,142.64/x
  3. Step 3: Cross multiply
    901,605,355.52x = 1,244,346,744.89 × 505,155,142.64
  4. Step 4: Simplify right side
    901,605,355.52x = 628,588,157,412,901,376
  5. Step 5: Solve for x
    x = 628,588,157,412,901,376/901,605,355.52
  6. Step 6: Final answer
    x = 697,187,692.56

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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.