Home / 449,743,793.12-620,802,464.08-309,080,651.52

Finding the Fourth Proportional to 449,743,793.12, 620,802,464.08 and 309,080,651.52

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Solution

The fourth proportional to 449,743,793.12, 620,802,464.08 and 309,080,651.52 is: 426,638,528.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,743,793.12 : 620,802,464.08 = 309,080,651.52 : x
  2. Step 2: Convert to fraction form
    449,743,793.12/620,802,464.08 = 309,080,651.52/x
  3. Step 3: Cross multiply
    449,743,793.12x = 620,802,464.08 × 309,080,651.52
  4. Step 4: Simplify right side
    449,743,793.12x = 191,878,030,063,067,808
  5. Step 5: Solve for x
    x = 191,878,030,063,067,808/449,743,793.12
  6. Step 6: Final answer
    x = 426,638,528.42

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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.