Home / 354,367,890.90-531,551,836.35-217,609,823.70

Finding the Fourth Proportional to 354,367,890.90, 531,551,836.35 and 217,609,823.70

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Solution

The fourth proportional to 354,367,890.90, 531,551,836.35 and 217,609,823.70 is: 326,414,735.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,367,890.90 : 531,551,836.35 = 217,609,823.70 : x
  2. Step 2: Convert to fraction form
    354,367,890.90/531,551,836.35 = 217,609,823.70/x
  3. Step 3: Cross multiply
    354,367,890.90x = 531,551,836.35 × 217,609,823.70
  4. Step 4: Simplify right side
    354,367,890.90x = 115,670,901,395,534,752
  5. Step 5: Solve for x
    x = 115,670,901,395,534,752/354,367,890.90
  6. Step 6: Final answer
    x = 326,414,735.55

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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.