Home / 383,871,723.88-529,729,803.30-218,912,385.64

Finding the Fourth Proportional to 383,871,723.88, 529,729,803.30 and 218,912,385.64

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Solution

The fourth proportional to 383,871,723.88, 529,729,803.30 and 218,912,385.64 is: 302,091,578.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,871,723.88 : 529,729,803.30 = 218,912,385.64 : x
  2. Step 2: Convert to fraction form
    383,871,723.88/529,729,803.30 = 218,912,385.64/x
  3. Step 3: Cross multiply
    383,871,723.88x = 529,729,803.30 × 218,912,385.64
  4. Step 4: Simplify right side
    383,871,723.88x = 115,964,414,985,010,944
  5. Step 5: Solve for x
    x = 115,964,414,985,010,944/383,871,723.88
  6. Step 6: Final answer
    x = 302,091,578.44

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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.