Home / 156,038,019.97-234,027,767.82-78,294,049.67

Finding the Fourth Proportional to 156,038,019.97, 234,027,767.82 and 78,294,049.67

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Solution

The fourth proportional to 156,038,019.97, 234,027,767.82 and 78,294,049.67 is: 117,426,391.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,038,019.97 : 234,027,767.82 = 78,294,049.67 : x
  2. Step 2: Convert to fraction form
    156,038,019.97/234,027,767.82 = 78,294,049.67/x
  3. Step 3: Cross multiply
    156,038,019.97x = 234,027,767.82 × 78,294,049.67
  4. Step 4: Simplify right side
    156,038,019.97x = 18,322,981,676,688,168
  5. Step 5: Solve for x
    x = 18,322,981,676,688,168/156,038,019.97
  6. Step 6: Final answer
    x = 117,426,391.85

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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.