Home / 385,762,952-532,353,081.12-211,933,893.44

Finding the Fourth Proportional to 385,762,952, 532,353,081.12 and 211,933,893.44

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Solution

The fourth proportional to 385,762,952, 532,353,081.12 and 211,933,893.44 is: 292,468,886.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,762,952 : 532,353,081.12 = 211,933,893.44 : x
  2. Step 2: Convert to fraction form
    385,762,952/532,353,081.12 = 211,933,893.44/x
  3. Step 3: Cross multiply
    385,762,952x = 532,353,081.12 × 211,933,893.44
  4. Step 4: Simplify right side
    385,762,952x = 112,823,661,166,541,760
  5. Step 5: Solve for x
    x = 112,823,661,166,541,760/385,762,952
  6. Step 6: Final answer
    x = 292,468,886.87

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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.