Home / 1,281,823,129,759.80-1,922,326,474,546.20-421,097,508,112.44

Finding the Fourth Proportional to 1,281,823,129,759.80, 1,922,326,474,546.20 and 421,097,508,112.44

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Solution

The fourth proportional to 1,281,823,129,759.80, 1,922,326,474,546.20 and 421,097,508,112.44 is: 631,512,155,941.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,823,129,759.80 : 1,922,326,474,546.20 = 421,097,508,112.44 : x
  2. Step 2: Convert to fraction form
    1,281,823,129,759.80/1,922,326,474,546.20 = 421,097,508,112.44/x
  3. Step 3: Cross multiply
    1,281,823,129,759.80x = 1,922,326,474,546.20 × 421,097,508,112.44
  4. Step 4: Simplify right side
    1,281,823,129,759.80x = 809,486,888,209,976,655,872,000
  5. Step 5: Solve for x
    x = 809,486,888,209,976,655,872,000/1,281,823,129,759.80
  6. Step 6: Final answer
    x = 631,512,155,941.25

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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.