Home / 20,736,037.80-31,089,311.10-7,951,602.60

Finding the Fourth Proportional to 20,736,037.80, 31,089,311.10 and 7,951,602.60

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Solution

The fourth proportional to 20,736,037.80, 31,089,311.10 and 7,951,602.60 is: 11,921,749.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,037.80 : 31,089,311.10 = 7,951,602.60 : x
  2. Step 2: Convert to fraction form
    20,736,037.80/31,089,311.10 = 7,951,602.60/x
  3. Step 3: Cross multiply
    20,736,037.80x = 31,089,311.10 × 7,951,602.60
  4. Step 4: Simplify right side
    20,736,037.80x = 247,209,846,974,968.88
  5. Step 5: Solve for x
    x = 247,209,846,974,968.88/20,736,037.80
  6. Step 6: Final answer
    x = 11,921,749.44

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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.