Home / 85,002,912.60-127,504,368.90-50,990,688.60

Finding the Fourth Proportional to 85,002,912.60, 127,504,368.90 and 50,990,688.60

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Solution

The fourth proportional to 85,002,912.60, 127,504,368.90 and 50,990,688.60 is: 76,486,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,002,912.60 : 127,504,368.90 = 50,990,688.60 : x
  2. Step 2: Convert to fraction form
    85,002,912.60/127,504,368.90 = 50,990,688.60/x
  3. Step 3: Cross multiply
    85,002,912.60x = 127,504,368.90 × 50,990,688.60
  4. Step 4: Simplify right side
    85,002,912.60x = 6,501,535,569,719,425
  5. Step 5: Solve for x
    x = 6,501,535,569,719,425/85,002,912.60
  6. Step 6: Final answer
    x = 76,486,032.90

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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.