Home / 7,089,679.40-9,783,707.58-3,870,415.40

Finding the Fourth Proportional to 7,089,679.40, 9,783,707.58 and 3,870,415.40

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Solution

The fourth proportional to 7,089,679.40, 9,783,707.58 and 3,870,415.40 is: 5,341,145.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089,679.40 : 9,783,707.58 = 3,870,415.40 : x
  2. Step 2: Convert to fraction form
    7,089,679.40/9,783,707.58 = 3,870,415.40/x
  3. Step 3: Cross multiply
    7,089,679.40x = 9,783,707.58 × 3,870,415.40
  4. Step 4: Simplify right side
    7,089,679.40x = 37,867,012,486,728.73
  5. Step 5: Solve for x
    x = 37,867,012,486,728.73/7,089,679.40
  6. Step 6: Final answer
    x = 5,341,145.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.