Home / 1,122,911,999.40-1,684,367,999.10-395,659,007.40

Finding the Fourth Proportional to 1,122,911,999.40, 1,684,367,999.10 and 395,659,007.40

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Solution

The fourth proportional to 1,122,911,999.40, 1,684,367,999.10 and 395,659,007.40 is: 593,488,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,911,999.40 : 1,684,367,999.10 = 395,659,007.40 : x
  2. Step 2: Convert to fraction form
    1,122,911,999.40/1,684,367,999.10 = 395,659,007.40/x
  3. Step 3: Cross multiply
    1,122,911,999.40x = 1,684,367,999.10 × 395,659,007.40
  4. Step 4: Simplify right side
    1,122,911,999.40x = 666,435,370,620,230,016
  5. Step 5: Solve for x
    x = 666,435,370,620,230,016/1,122,911,999.40
  6. Step 6: Final answer
    x = 593,488,511.10

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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.