Home / 394,844,284.68-545,452,686.90-315,354,982.92

Finding the Fourth Proportional to 394,844,284.68, 545,452,686.90 and 315,354,982.92

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Solution

The fourth proportional to 394,844,284.68, 545,452,686.90 and 315,354,982.92 is: 435,643,187.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,844,284.68 : 545,452,686.90 = 315,354,982.92 : x
  2. Step 2: Convert to fraction form
    394,844,284.68/545,452,686.90 = 315,354,982.92/x
  3. Step 3: Cross multiply
    394,844,284.68x = 545,452,686.90 × 315,354,982.92
  4. Step 4: Simplify right side
    394,844,284.68x = 172,011,222,761,017,600
  5. Step 5: Solve for x
    x = 172,011,222,761,017,600/394,844,284.68
  6. Step 6: Final answer
    x = 435,643,187.54

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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.