Home / 209,594,640.22-289,242,580.13-115,512,179.70

Finding the Fourth Proportional to 209,594,640.22, 289,242,580.13 and 115,512,179.70

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Solution

The fourth proportional to 209,594,640.22, 289,242,580.13 and 115,512,179.70 is: 159,407,897.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,594,640.22 : 289,242,580.13 = 115,512,179.70 : x
  2. Step 2: Convert to fraction form
    209,594,640.22/289,242,580.13 = 115,512,179.70/x
  3. Step 3: Cross multiply
    209,594,640.22x = 289,242,580.13 × 115,512,179.70
  4. Step 4: Simplify right side
    209,594,640.22x = 33,411,040,892,868,208
  5. Step 5: Solve for x
    x = 33,411,040,892,868,208/209,594,640.22
  6. Step 6: Final answer
    x = 159,407,897.35

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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.