Home / 251,951,977.20-377,871,249.60-90,393,913.20

Finding the Fourth Proportional to 251,951,977.20, 377,871,249.60 and 90,393,913.20

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Solution

The fourth proportional to 251,951,977.20, 377,871,249.60 and 90,393,913.20 is: 135,570,521.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,951,977.20 : 377,871,249.60 = 90,393,913.20 : x
  2. Step 2: Convert to fraction form
    251,951,977.20/377,871,249.60 = 90,393,913.20/x
  3. Step 3: Cross multiply
    251,951,977.20x = 377,871,249.60 × 90,393,913.20
  4. Step 4: Simplify right side
    251,951,977.20x = 34,157,260,937,117,940
  5. Step 5: Solve for x
    x = 34,157,260,937,117,940/251,951,977.20
  6. Step 6: Final answer
    x = 135,570,521.48

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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.