Home / 20,736,005.80-31,089,263.10-7,951,570.60

Finding the Fourth Proportional to 20,736,005.80, 31,089,263.10 and 7,951,570.60

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Solution

The fourth proportional to 20,736,005.80, 31,089,263.10 and 7,951,570.60 is: 11,921,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,005.80 : 31,089,263.10 = 7,951,570.60 : x
  2. Step 2: Convert to fraction form
    20,736,005.80/31,089,263.10 = 7,951,570.60/x
  3. Step 3: Cross multiply
    20,736,005.80x = 31,089,263.10 × 7,951,570.60
  4. Step 4: Simplify right side
    20,736,005.80x = 247,208,470,441,624.88
  5. Step 5: Solve for x
    x = 247,208,470,441,624.88/20,736,005.80
  6. Step 6: Final answer
    x = 11,921,701.45

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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.