Home / 85,135,043.80-117,486,355.95-45,976,816.78

Finding the Fourth Proportional to 85,135,043.80, 117,486,355.95 and 45,976,816.78

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Solution

The fourth proportional to 85,135,043.80, 117,486,355.95 and 45,976,816.78 is: 63,448,004.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,135,043.80 : 117,486,355.95 = 45,976,816.78 : x
  2. Step 2: Convert to fraction form
    85,135,043.80/117,486,355.95 = 45,976,816.78/x
  3. Step 3: Cross multiply
    85,135,043.80x = 117,486,355.95 × 45,976,816.78
  4. Step 4: Simplify right side
    85,135,043.80x = 5,401,648,661,369,298
  5. Step 5: Solve for x
    x = 5,401,648,661,369,298/85,135,043.80
  6. Step 6: Final answer
    x = 63,448,004.73

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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.