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Finding the Fourth Proportional to 370,691,635.37, 556,019,485.78 and 137,567,795.69

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Solution

The fourth proportional to 370,691,635.37, 556,019,485.78 and 137,567,795.69 is: 206,345,025.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,691,635.37 : 556,019,485.78 = 137,567,795.69 : x
  2. Step 2: Convert to fraction form
    370,691,635.37/556,019,485.78 = 137,567,795.69/x
  3. Step 3: Cross multiply
    370,691,635.37x = 556,019,485.78 × 137,567,795.69
  4. Step 4: Simplify right side
    370,691,635.37x = 76,490,375,017,005,728
  5. Step 5: Solve for x
    x = 76,490,375,017,005,728/370,691,635.37
  6. Step 6: Final answer
    x = 206,345,025.67

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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.