Home / 773,664,089.36-1,067,682,646.76-421,253,747.60

Finding the Fourth Proportional to 773,664,089.36, 1,067,682,646.76 and 421,253,747.60

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Solution

The fourth proportional to 773,664,089.36, 1,067,682,646.76 and 421,253,747.60 is: 581,344,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,664,089.36 : 1,067,682,646.76 = 421,253,747.60 : x
  2. Step 2: Convert to fraction form
    773,664,089.36/1,067,682,646.76 = 421,253,747.60/x
  3. Step 3: Cross multiply
    773,664,089.36x = 1,067,682,646.76 × 421,253,747.60
  4. Step 4: Simplify right side
    773,664,089.36x = 449,765,316,195,137,024
  5. Step 5: Solve for x
    x = 449,765,316,195,137,024/773,664,089.36
  6. Step 6: Final answer
    x = 581,344,439.25

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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.