Home / 301,279,875.20-451,961,803.20-128,755,318.40

Finding the Fourth Proportional to 301,279,875.20, 451,961,803.20 and 128,755,318.40

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Solution

The fourth proportional to 301,279,875.20, 451,961,803.20 and 128,755,318.40 is: 193,150,922.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,279,875.20 : 451,961,803.20 = 128,755,318.40 : x
  2. Step 2: Convert to fraction form
    301,279,875.20/451,961,803.20 = 128,755,318.40/x
  3. Step 3: Cross multiply
    301,279,875.20x = 451,961,803.20 × 128,755,318.40
  4. Step 4: Simplify right side
    301,279,875.20x = 58,192,485,875,654,144
  5. Step 5: Solve for x
    x = 58,192,485,875,654,144/301,279,875.20
  6. Step 6: Final answer
    x = 193,150,922.67

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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.