Home / 354,368,015.40-531,552,023.10-217,609,948.20

Finding the Fourth Proportional to 354,368,015.40, 531,552,023.10 and 217,609,948.20

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Solution

The fourth proportional to 354,368,015.40, 531,552,023.10 and 217,609,948.20 is: 326,414,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,368,015.40 : 531,552,023.10 = 217,609,948.20 : x
  2. Step 2: Convert to fraction form
    354,368,015.40/531,552,023.10 = 217,609,948.20/x
  3. Step 3: Cross multiply
    354,368,015.40x = 531,552,023.10 × 217,609,948.20
  4. Step 4: Simplify right side
    354,368,015.40x = 115,671,008,212,396,208
  5. Step 5: Solve for x
    x = 115,671,008,212,396,208/354,368,015.40
  6. Step 6: Final answer
    x = 326,414,922.30

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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.