Home / 398,640,752.10-597,961,128.15-217,242,224.10

Finding the Fourth Proportional to 398,640,752.10, 597,961,128.15 and 217,242,224.10

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Solution

The fourth proportional to 398,640,752.10, 597,961,128.15 and 217,242,224.10 is: 325,863,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,640,752.10 : 597,961,128.15 = 217,242,224.10 : x
  2. Step 2: Convert to fraction form
    398,640,752.10/597,961,128.15 = 217,242,224.10/x
  3. Step 3: Cross multiply
    398,640,752.10x = 597,961,128.15 × 217,242,224.10
  4. Step 4: Simplify right side
    398,640,752.10x = 129,902,405,404,651,104
  5. Step 5: Solve for x
    x = 129,902,405,404,651,104/398,640,752.10
  6. Step 6: Final answer
    x = 325,863,336.15

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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.