Home / 728,740,672,272-1,005,177,890,966.20-468,647,206,864.34

Finding the Fourth Proportional to 728,740,672,272, 1,005,177,890,966.20 and 468,647,206,864.34

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Solution

The fourth proportional to 728,740,672,272, 1,005,177,890,966.20 and 468,647,206,864.34 is: 646,421,736,739.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,740,672,272 : 1,005,177,890,966.20 = 468,647,206,864.34 : x
  2. Step 2: Convert to fraction form
    728,740,672,272/1,005,177,890,966.20 = 468,647,206,864.34/x
  3. Step 3: Cross multiply
    728,740,672,272x = 1,005,177,890,966.20 × 468,647,206,864.34
  4. Step 4: Simplify right side
    728,740,672,272x = 471,073,811,003,097,732,874,240
  5. Step 5: Solve for x
    x = 471,073,811,003,097,732,874,240/728,740,672,272
  6. Step 6: Final answer
    x = 646,421,736,739.94

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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.