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Finding the Fourth Proportional to 661,877,604.80, 992,816,407.20 and 335,360,254.40

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Solution

The fourth proportional to 661,877,604.80, 992,816,407.20 and 335,360,254.40 is: 503,040,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,877,604.80 : 992,816,407.20 = 335,360,254.40 : x
  2. Step 2: Convert to fraction form
    661,877,604.80/992,816,407.20 = 335,360,254.40/x
  3. Step 3: Cross multiply
    661,877,604.80x = 992,816,407.20 × 335,360,254.40
  4. Step 4: Simplify right side
    661,877,604.80x = 332,951,162,891,086,016
  5. Step 5: Solve for x
    x = 332,951,162,891,086,016/661,877,604.80
  6. Step 6: Final answer
    x = 503,040,381.60

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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.