Home / 790,768,817.76-1,186,140,023.24-192,512,978.81

Finding the Fourth Proportional to 790,768,817.76, 1,186,140,023.24 and 192,512,978.81

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Solution

The fourth proportional to 790,768,817.76, 1,186,140,023.24 and 192,512,978.81 is: 288,766,253.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,768,817.76 : 1,186,140,023.24 = 192,512,978.81 : x
  2. Step 2: Convert to fraction form
    790,768,817.76/1,186,140,023.24 = 192,512,978.81/x
  3. Step 3: Cross multiply
    790,768,817.76x = 1,186,140,023.24 × 192,512,978.81
  4. Step 4: Simplify right side
    790,768,817.76x = 228,347,349,152,801,760
  5. Step 5: Solve for x
    x = 228,347,349,152,801,760/790,768,817.76
  6. Step 6: Final answer
    x = 288,766,253.83

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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.