Home / 403,590,414.60-556,954,767.05-217,951,413.89

Finding the Fourth Proportional to 403,590,414.60, 556,954,767.05 and 217,951,413.89

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Solution

The fourth proportional to 403,590,414.60, 556,954,767.05 and 217,951,413.89 is: 300,772,948.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,590,414.60 : 556,954,767.05 = 217,951,413.89 : x
  2. Step 2: Convert to fraction form
    403,590,414.60/556,954,767.05 = 217,951,413.89/x
  3. Step 3: Cross multiply
    403,590,414.60x = 556,954,767.05 × 217,951,413.89
  4. Step 4: Simplify right side
    403,590,414.60x = 121,389,078,947,448,544
  5. Step 5: Solve for x
    x = 121,389,078,947,448,544/403,590,414.60
  6. Step 6: Final answer
    x = 300,772,948.41

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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.