Home / 51,201,258.66-76,801,961.90-20,909,121.66

Finding the Fourth Proportional to 51,201,258.66, 76,801,961.90 and 20,909,121.66

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Solution

The fourth proportional to 51,201,258.66, 76,801,961.90 and 20,909,121.66 is: 31,363,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,201,258.66 : 76,801,961.90 = 20,909,121.66 : x
  2. Step 2: Convert to fraction form
    51,201,258.66/76,801,961.90 = 20,909,121.66/x
  3. Step 3: Cross multiply
    51,201,258.66x = 76,801,961.90 × 20,909,121.66
  4. Step 4: Simplify right side
    51,201,258.66x = 1,605,861,565,146,057.75
  5. Step 5: Solve for x
    x = 1,605,861,565,146,057.75/51,201,258.66
  6. Step 6: Final answer
    x = 31,363,712.67

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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.