Home / 1,206,653,999.60-1,809,980,999.40-479,642,711.60

Finding the Fourth Proportional to 1,206,653,999.60, 1,809,980,999.40 and 479,642,711.60

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Solution

The fourth proportional to 1,206,653,999.60, 1,809,980,999.40 and 479,642,711.60 is: 719,464,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,653,999.60 : 1,809,980,999.40 = 479,642,711.60 : x
  2. Step 2: Convert to fraction form
    1,206,653,999.60/1,809,980,999.40 = 479,642,711.60/x
  3. Step 3: Cross multiply
    1,206,653,999.60x = 1,809,980,999.40 × 479,642,711.60
  4. Step 4: Simplify right side
    1,206,653,999.60x = 868,144,194,496,694,016
  5. Step 5: Solve for x
    x = 868,144,194,496,694,016/1,206,653,999.60
  6. Step 6: Final answer
    x = 719,464,067.40

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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.