Home / 551,738,157.78-761,583,160.42-328,789,751.74

Finding the Fourth Proportional to 551,738,157.78, 761,583,160.42 and 328,789,751.74

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Solution

The fourth proportional to 551,738,157.78, 761,583,160.42 and 328,789,751.74 is: 453,839,805.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,738,157.78 : 761,583,160.42 = 328,789,751.74 : x
  2. Step 2: Convert to fraction form
    551,738,157.78/761,583,160.42 = 328,789,751.74/x
  3. Step 3: Cross multiply
    551,738,157.78x = 761,583,160.42 × 328,789,751.74
  4. Step 4: Simplify right side
    551,738,157.78x = 250,400,738,243,856,384
  5. Step 5: Solve for x
    x = 250,400,738,243,856,384/551,738,157.78
  6. Step 6: Final answer
    x = 453,839,805.55

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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.