Home / 556,647,945.38-768,307,951.65-318,631,104.86

Finding the Fourth Proportional to 556,647,945.38, 768,307,951.65 and 318,631,104.86

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Solution

The fourth proportional to 556,647,945.38, 768,307,951.65 and 318,631,104.86 is: 439,787,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,647,945.38 : 768,307,951.65 = 318,631,104.86 : x
  2. Step 2: Convert to fraction form
    556,647,945.38/768,307,951.65 = 318,631,104.86/x
  3. Step 3: Cross multiply
    556,647,945.38x = 768,307,951.65 × 318,631,104.86
  4. Step 4: Simplify right side
    556,647,945.38x = 244,806,811,506,962,976
  5. Step 5: Solve for x
    x = 244,806,811,506,962,976/556,647,945.38
  6. Step 6: Final answer
    x = 439,787,505.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.