Home / 384,024,324.78-529,784,687.88-225,173,365.80

Finding the Fourth Proportional to 384,024,324.78, 529,784,687.88 and 225,173,365.80

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Solution

The fourth proportional to 384,024,324.78, 529,784,687.88 and 225,173,365.80 is: 310,640,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,024,324.78 : 529,784,687.88 = 225,173,365.80 : x
  2. Step 2: Convert to fraction form
    384,024,324.78/529,784,687.88 = 225,173,365.80/x
  3. Step 3: Cross multiply
    384,024,324.78x = 529,784,687.88 × 225,173,365.80
  4. Step 4: Simplify right side
    384,024,324.78x = 119,293,401,319,242,064
  5. Step 5: Solve for x
    x = 119,293,401,319,242,064/384,024,324.78
  6. Step 6: Final answer
    x = 310,640,221.52

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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.