Home / 728,275,297.70-1,092,412,946.55-644,095,043.30

Finding the Fourth Proportional to 728,275,297.70, 1,092,412,946.55 and 644,095,043.30

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Solution

The fourth proportional to 728,275,297.70, 1,092,412,946.55 and 644,095,043.30 is: 966,142,564.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,275,297.70 : 1,092,412,946.55 = 644,095,043.30 : x
  2. Step 2: Convert to fraction form
    728,275,297.70/1,092,412,946.55 = 644,095,043.30/x
  3. Step 3: Cross multiply
    728,275,297.70x = 1,092,412,946.55 × 644,095,043.30
  4. Step 4: Simplify right side
    728,275,297.70x = 703,617,764,109,602,816
  5. Step 5: Solve for x
    x = 703,617,764,109,602,816/728,275,297.70
  6. Step 6: Final answer
    x = 966,142,564.95

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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.