Home / 657,707,104.89-986,780,909.30-215,070,197.31

Finding the Fourth Proportional to 657,707,104.89, 986,780,909.30 and 215,070,197.31

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Solution

The fourth proportional to 657,707,104.89, 986,780,909.30 and 215,070,197.31 is: 322,677,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,707,104.89 : 986,780,909.30 = 215,070,197.31 : x
  2. Step 2: Convert to fraction form
    657,707,104.89/986,780,909.30 = 215,070,197.31/x
  3. Step 3: Cross multiply
    657,707,104.89x = 986,780,909.30 × 215,070,197.31
  4. Step 4: Simplify right side
    657,707,104.89x = 212,227,164,863,816,864
  5. Step 5: Solve for x
    x = 212,227,164,863,816,864/657,707,104.89
  6. Step 6: Final answer
    x = 322,677,318.35

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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.