Home / 561,373,308.41-774,384,143.87-326,397,989.75

Finding the Fourth Proportional to 561,373,308.41, 774,384,143.87 and 326,397,989.75

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Solution

The fourth proportional to 561,373,308.41, 774,384,143.87 and 326,397,989.75 is: 450,248,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,373,308.41 : 774,384,143.87 = 326,397,989.75 : x
  2. Step 2: Convert to fraction form
    561,373,308.41/774,384,143.87 = 326,397,989.75/x
  3. Step 3: Cross multiply
    561,373,308.41x = 774,384,143.87 × 326,397,989.75
  4. Step 4: Simplify right side
    561,373,308.41x = 252,757,427,850,386,848
  5. Step 5: Solve for x
    x = 252,757,427,850,386,848/561,373,308.41
  6. Step 6: Final answer
    x = 450,248,389.20

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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.