Home / 103,019,942.40-154,529,913.60-31,207,027.20

Finding the Fourth Proportional to 103,019,942.40, 154,529,913.60 and 31,207,027.20

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Solution

The fourth proportional to 103,019,942.40, 154,529,913.60 and 31,207,027.20 is: 46,810,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,019,942.40 : 154,529,913.60 = 31,207,027.20 : x
  2. Step 2: Convert to fraction form
    103,019,942.40/154,529,913.60 = 31,207,027.20/x
  3. Step 3: Cross multiply
    103,019,942.40x = 154,529,913.60 × 31,207,027.20
  4. Step 4: Simplify right side
    103,019,942.40x = 4,822,419,216,928,850
  5. Step 5: Solve for x
    x = 4,822,419,216,928,850/103,019,942.40
  6. Step 6: Final answer
    x = 46,810,540.80

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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.