Home / 79,119,861.20-118,679,791.80-48,508,859.60

Finding the Fourth Proportional to 79,119,861.20, 118,679,791.80 and 48,508,859.60

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Solution

The fourth proportional to 79,119,861.20, 118,679,791.80 and 48,508,859.60 is: 72,763,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,119,861.20 : 118,679,791.80 = 48,508,859.60 : x
  2. Step 2: Convert to fraction form
    79,119,861.20/118,679,791.80 = 48,508,859.60/x
  3. Step 3: Cross multiply
    79,119,861.20x = 118,679,791.80 × 48,508,859.60
  4. Step 4: Simplify right side
    79,119,861.20x = 5,757,021,357,783,431
  5. Step 5: Solve for x
    x = 5,757,021,357,783,431/79,119,861.20
  6. Step 6: Final answer
    x = 72,763,289.40

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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.