Home / 655,379,546.90-983,077,839.50-218,680,231.07

Finding the Fourth Proportional to 655,379,546.90, 983,077,839.50 and 218,680,231.07

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Solution

The fourth proportional to 655,379,546.90, 983,077,839.50 and 218,680,231.07 is: 328,023,189.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,379,546.90 : 983,077,839.50 = 218,680,231.07 : x
  2. Step 2: Convert to fraction form
    655,379,546.90/983,077,839.50 = 218,680,231.07/x
  3. Step 3: Cross multiply
    655,379,546.90x = 983,077,839.50 × 218,680,231.07
  4. Step 4: Simplify right side
    655,379,546.90x = 214,979,689,095,647,584
  5. Step 5: Solve for x
    x = 214,979,689,095,647,584/655,379,546.90
  6. Step 6: Final answer
    x = 328,023,189.18

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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.