Home / 82,867,221.80-124,300,832.70-65,735,138.60

Finding the Fourth Proportional to 82,867,221.80, 124,300,832.70 and 65,735,138.60

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Solution

The fourth proportional to 82,867,221.80, 124,300,832.70 and 65,735,138.60 is: 98,602,707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,867,221.80 : 124,300,832.70 = 65,735,138.60 : x
  2. Step 2: Convert to fraction form
    82,867,221.80/124,300,832.70 = 65,735,138.60/x
  3. Step 3: Cross multiply
    82,867,221.80x = 124,300,832.70 × 65,735,138.60
  4. Step 4: Simplify right side
    82,867,221.80x = 8,170,932,465,629,913
  5. Step 5: Solve for x
    x = 8,170,932,465,629,913/82,867,221.80
  6. Step 6: Final answer
    x = 98,602,707.90

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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.