Home / 784,365,207.58-1,082,389,070.77-449,597,734.59

Finding the Fourth Proportional to 784,365,207.58, 1,082,389,070.77 and 449,597,734.59

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Solution

The fourth proportional to 784,365,207.58, 1,082,389,070.77 and 449,597,734.59 is: 620,424,860.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,365,207.58 : 1,082,389,070.77 = 449,597,734.59 : x
  2. Step 2: Convert to fraction form
    784,365,207.58/1,082,389,070.77 = 449,597,734.59/x
  3. Step 3: Cross multiply
    784,365,207.58x = 1,082,389,070.77 × 449,597,734.59
  4. Step 4: Simplify right side
    784,365,207.58x = 486,639,674,163,167,168
  5. Step 5: Solve for x
    x = 486,639,674,163,167,168/784,365,207.58
  6. Step 6: Final answer
    x = 620,424,860.08

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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.