Home / 721,795,701.80-1,082,926,722.36-333,873,001.28

Finding the Fourth Proportional to 721,795,701.80, 1,082,926,722.36 and 333,873,001.28

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Solution

The fourth proportional to 721,795,701.80, 1,082,926,722.36 and 333,873,001.28 is: 500,917,356.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,795,701.80 : 1,082,926,722.36 = 333,873,001.28 : x
  2. Step 2: Convert to fraction form
    721,795,701.80/1,082,926,722.36 = 333,873,001.28/x
  3. Step 3: Cross multiply
    721,795,701.80x = 1,082,926,722.36 × 333,873,001.28
  4. Step 4: Simplify right side
    721,795,701.80x = 361,559,994,960,646,400
  5. Step 5: Solve for x
    x = 361,559,994,960,646,400/721,795,701.80
  6. Step 6: Final answer
    x = 500,917,356.61

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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.