Home / 551,738,148.78-761,583,147.99-328,789,742.73

Finding the Fourth Proportional to 551,738,148.78, 761,583,147.99 and 328,789,742.73

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Solution

The fourth proportional to 551,738,148.78, 761,583,147.99 and 328,789,742.73 is: 453,839,793.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,738,148.78 : 761,583,147.99 = 328,789,742.73 : x
  2. Step 2: Convert to fraction form
    551,738,148.78/761,583,147.99 = 328,789,742.73/x
  3. Step 3: Cross multiply
    551,738,148.78x = 761,583,147.99 × 328,789,742.73
  4. Step 4: Simplify right side
    551,738,148.78x = 250,400,727,291,046,720
  5. Step 5: Solve for x
    x = 250,400,727,291,046,720/551,738,148.78
  6. Step 6: Final answer
    x = 453,839,793.10

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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.