Home / 766,441,679.40-1,149,645,974.22-213,729,385.32

Finding the Fourth Proportional to 766,441,679.40, 1,149,645,974.22 and 213,729,385.32

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Solution

The fourth proportional to 766,441,679.40, 1,149,645,974.22 and 213,729,385.32 is: 320,589,464.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,441,679.40 : 1,149,645,974.22 = 213,729,385.32 : x
  2. Step 2: Convert to fraction form
    766,441,679.40/1,149,645,974.22 = 213,729,385.32/x
  3. Step 3: Cross multiply
    766,441,679.40x = 1,149,645,974.22 × 213,729,385.32
  4. Step 4: Simplify right side
    766,441,679.40x = 245,713,127,405,653,152
  5. Step 5: Solve for x
    x = 245,713,127,405,653,152/766,441,679.40
  6. Step 6: Final answer
    x = 320,589,464.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.