Home / 657,511,988.20-986,394,872.89-214,735,633.26

Finding the Fourth Proportional to 657,511,988.20, 986,394,872.89 and 214,735,633.26

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Solution

The fourth proportional to 657,511,988.20, 986,394,872.89 and 214,735,633.26 is: 322,144,890.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,511,988.20 : 986,394,872.89 = 214,735,633.26 : x
  2. Step 2: Convert to fraction form
    657,511,988.20/986,394,872.89 = 214,735,633.26/x
  3. Step 3: Cross multiply
    657,511,988.20x = 986,394,872.89 × 214,735,633.26
  4. Step 4: Simplify right side
    657,511,988.20x = 211,814,127,672,883,232
  5. Step 5: Solve for x
    x = 211,814,127,672,883,232/657,511,988.20
  6. Step 6: Final answer
    x = 322,144,890.85

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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.