Home / 426,504,709.41-639,781,864.70-119,820,737.13

Finding the Fourth Proportional to 426,504,709.41, 639,781,864.70 and 119,820,737.13

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Solution

The fourth proportional to 426,504,709.41, 639,781,864.70 and 119,820,737.13 is: 179,738,073.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,504,709.41 : 639,781,864.70 = 119,820,737.13 : x
  2. Step 2: Convert to fraction form
    426,504,709.41/639,781,864.70 = 119,820,737.13/x
  3. Step 3: Cross multiply
    426,504,709.41x = 639,781,864.70 × 119,820,737.13
  4. Step 4: Simplify right side
    426,504,709.41x = 76,659,134,630,160,832
  5. Step 5: Solve for x
    x = 76,659,134,630,160,832/426,504,709.41
  6. Step 6: Final answer
    x = 179,738,073.08

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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.