Home / 385,762,949-532,353,076.98-211,933,890.44

Finding the Fourth Proportional to 385,762,949, 532,353,076.98 and 211,933,890.44

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Solution

The fourth proportional to 385,762,949, 532,353,076.98 and 211,933,890.44 is: 292,468,882.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,762,949 : 532,353,076.98 = 211,933,890.44 : x
  2. Step 2: Convert to fraction form
    385,762,949/532,353,076.98 = 211,933,890.44/x
  3. Step 3: Cross multiply
    385,762,949x = 532,353,076.98 × 211,933,890.44
  4. Step 4: Simplify right side
    385,762,949x = 112,823,658,692,076,208
  5. Step 5: Solve for x
    x = 112,823,658,692,076,208/385,762,949
  6. Step 6: Final answer
    x = 292,468,882.73

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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.