Home / 403,590,408.60-556,954,758.77-217,951,407.89

Finding the Fourth Proportional to 403,590,408.60, 556,954,758.77 and 217,951,407.89

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Solution

The fourth proportional to 403,590,408.60, 556,954,758.77 and 217,951,407.89 is: 300,772,940.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,590,408.60 : 556,954,758.77 = 217,951,407.89 : x
  2. Step 2: Convert to fraction form
    403,590,408.60/556,954,758.77 = 217,951,407.89/x
  3. Step 3: Cross multiply
    403,590,408.60x = 556,954,758.77 × 217,951,407.89
  4. Step 4: Simplify right side
    403,590,408.60x = 121,389,073,804,956,816
  5. Step 5: Solve for x
    x = 121,389,073,804,956,816/403,590,408.60
  6. Step 6: Final answer
    x = 300,772,940.14

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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.