Home / 354,367,939.40-531,551,909.10-217,609,872.20

Finding the Fourth Proportional to 354,367,939.40, 531,551,909.10 and 217,609,872.20

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Solution

The fourth proportional to 354,367,939.40, 531,551,909.10 and 217,609,872.20 is: 326,414,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,367,939.40 : 531,551,909.10 = 217,609,872.20 : x
  2. Step 2: Convert to fraction form
    354,367,939.40/531,551,909.10 = 217,609,872.20/x
  3. Step 3: Cross multiply
    354,367,939.40x = 531,551,909.10 × 217,609,872.20
  4. Step 4: Simplify right side
    354,367,939.40x = 115,670,943,006,917,008
  5. Step 5: Solve for x
    x = 115,670,943,006,917,008/354,367,939.40
  6. Step 6: Final answer
    x = 326,414,808.30

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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.