Home / 784,365,221.63-1,082,389,090.10-449,597,748.59

Finding the Fourth Proportional to 784,365,221.63, 1,082,389,090.10 and 449,597,748.59

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Solution

The fourth proportional to 784,365,221.63, 1,082,389,090.10 and 449,597,748.59 is: 620,424,879.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,365,221.63 : 1,082,389,090.10 = 449,597,748.59 : x
  2. Step 2: Convert to fraction form
    784,365,221.63/1,082,389,090.10 = 449,597,748.59/x
  3. Step 3: Cross multiply
    784,365,221.63x = 1,082,389,090.10 × 449,597,748.59
  4. Step 4: Simplify right side
    784,365,221.63x = 486,639,697,999,678,720
  5. Step 5: Solve for x
    x = 486,639,697,999,678,720/784,365,221.63
  6. Step 6: Final answer
    x = 620,424,879.36

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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.