Home / 784,365,218.62-1,082,389,085.96-449,597,745.59

Finding the Fourth Proportional to 784,365,218.62, 1,082,389,085.96 and 449,597,745.59

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Solution

The fourth proportional to 784,365,218.62, 1,082,389,085.96 and 449,597,745.59 is: 620,424,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,365,218.62 : 1,082,389,085.96 = 449,597,745.59 : x
  2. Step 2: Convert to fraction form
    784,365,218.62/1,082,389,085.96 = 449,597,745.59/x
  3. Step 3: Cross multiply
    784,365,218.62x = 1,082,389,085.96 × 449,597,745.59
  4. Step 4: Simplify right side
    784,365,218.62x = 486,639,692,891,176,704
  5. Step 5: Solve for x
    x = 486,639,692,891,176,704/784,365,218.62
  6. Step 6: Final answer
    x = 620,424,875.22

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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.