Home / 398,103,669.45-597,155,504.18-225,916,785.45

Finding the Fourth Proportional to 398,103,669.45, 597,155,504.18 and 225,916,785.45

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Solution

The fourth proportional to 398,103,669.45, 597,155,504.18 and 225,916,785.45 is: 338,875,178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,103,669.45 : 597,155,504.18 = 225,916,785.45 : x
  2. Step 2: Convert to fraction form
    398,103,669.45/597,155,504.18 = 225,916,785.45/x
  3. Step 3: Cross multiply
    398,103,669.45x = 597,155,504.18 × 225,916,785.45
  4. Step 4: Simplify right side
    398,103,669.45x = 134,907,451,916,990,032
  5. Step 5: Solve for x
    x = 134,907,451,916,990,032/398,103,669.45
  6. Step 6: Final answer
    x = 338,875,178.18

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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.