Home / 107,870,517.20-161,805,775.80-71,590,811.60

Finding the Fourth Proportional to 107,870,517.20, 161,805,775.80 and 71,590,811.60

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Solution

The fourth proportional to 107,870,517.20, 161,805,775.80 and 71,590,811.60 is: 107,386,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,870,517.20 : 161,805,775.80 = 71,590,811.60 : x
  2. Step 2: Convert to fraction form
    107,870,517.20/161,805,775.80 = 71,590,811.60/x
  3. Step 3: Cross multiply
    107,870,517.20x = 161,805,775.80 × 71,590,811.60
  4. Step 4: Simplify right side
    107,870,517.20x = 11,583,806,811,089,640
  5. Step 5: Solve for x
    x = 11,583,806,811,089,640/107,870,517.20
  6. Step 6: Final answer
    x = 107,386,217.40

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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.