Home / 728,740,672,271.85-1,005,177,890,965.90-468,647,206,864.15

Finding the Fourth Proportional to 728,740,672,271.85, 1,005,177,890,965.90 and 468,647,206,864.15

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Solution

The fourth proportional to 728,740,672,271.85, 1,005,177,890,965.90 and 468,647,206,864.15 is: 646,421,736,739.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,740,672,271.85 : 1,005,177,890,965.90 = 468,647,206,864.15 : x
  2. Step 2: Convert to fraction form
    728,740,672,271.85/1,005,177,890,965.90 = 468,647,206,864.15/x
  3. Step 3: Cross multiply
    728,740,672,271.85x = 1,005,177,890,965.90 × 468,647,206,864.15
  4. Step 4: Simplify right side
    728,740,672,271.85x = 471,073,811,002,766,215,086,080
  5. Step 5: Solve for x
    x = 471,073,811,002,766,215,086,080/728,740,672,271.85
  6. Step 6: Final answer
    x = 646,421,736,739.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.