Home / 708,588,611.70-1,062,882,917.55-320,424,105.30

Finding the Fourth Proportional to 708,588,611.70, 1,062,882,917.55 and 320,424,105.30

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Solution

The fourth proportional to 708,588,611.70, 1,062,882,917.55 and 320,424,105.30 is: 480,636,157.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,588,611.70 : 1,062,882,917.55 = 320,424,105.30 : x
  2. Step 2: Convert to fraction form
    708,588,611.70/1,062,882,917.55 = 320,424,105.30/x
  3. Step 3: Cross multiply
    708,588,611.70x = 1,062,882,917.55 × 320,424,105.30
  4. Step 4: Simplify right side
    708,588,611.70x = 340,573,307,894,612,416
  5. Step 5: Solve for x
    x = 340,573,307,894,612,416/708,588,611.70
  6. Step 6: Final answer
    x = 480,636,157.95

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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.