Home / 139,014,013.20-208,620,552.60-58,292,912.40

Finding the Fourth Proportional to 139,014,013.20, 208,620,552.60 and 58,292,912.40

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Solution

The fourth proportional to 139,014,013.20, 208,620,552.60 and 58,292,912.40 is: 87,481,105.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,014,013.20 : 208,620,552.60 = 58,292,912.40 : x
  2. Step 2: Convert to fraction form
    139,014,013.20/208,620,552.60 = 58,292,912.40/x
  3. Step 3: Cross multiply
    139,014,013.20x = 208,620,552.60 × 58,292,912.40
  4. Step 4: Simplify right side
    139,014,013.20x = 12,161,099,597,551,392
  5. Step 5: Solve for x
    x = 12,161,099,597,551,392/139,014,013.20
  6. Step 6: Final answer
    x = 87,481,105.81

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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.