Home / 1,281,823,129,757.30-1,922,326,474,542.40-421,097,508,109.94

Finding the Fourth Proportional to 1,281,823,129,757.30, 1,922,326,474,542.40 and 421,097,508,109.94

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Solution

The fourth proportional to 1,281,823,129,757.30, 1,922,326,474,542.40 and 421,097,508,109.94 is: 631,512,155,937.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,823,129,757.30 : 1,922,326,474,542.40 = 421,097,508,109.94 : x
  2. Step 2: Convert to fraction form
    1,281,823,129,757.30/1,922,326,474,542.40 = 421,097,508,109.94/x
  3. Step 3: Cross multiply
    1,281,823,129,757.30x = 1,922,326,474,542.40 × 421,097,508,109.94
  4. Step 4: Simplify right side
    1,281,823,129,757.30x = 809,486,888,203,570,577,932,288
  5. Step 5: Solve for x
    x = 809,486,888,203,570,577,932,288/1,281,823,129,757.30
  6. Step 6: Final answer
    x = 631,512,155,937.49

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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.