Home / 912,545,911.36-1,259,313,691.32-494,858,084.32

Finding the Fourth Proportional to 912,545,911.36, 1,259,313,691.32 and 494,858,084.32

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Solution

The fourth proportional to 912,545,911.36, 1,259,313,691.32 and 494,858,084.32 is: 682,904,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,545,911.36 : 1,259,313,691.32 = 494,858,084.32 : x
  2. Step 2: Convert to fraction form
    912,545,911.36/1,259,313,691.32 = 494,858,084.32/x
  3. Step 3: Cross multiply
    912,545,911.36x = 1,259,313,691.32 × 494,858,084.32
  4. Step 4: Simplify right side
    912,545,911.36x = 623,181,560,844,562,944
  5. Step 5: Solve for x
    x = 623,181,560,844,562,944/912,545,911.36
  6. Step 6: Final answer
    x = 682,904,337.29

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1.5x scale

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.