Home / 2,120,645,680.12-3,179,490,519.66-939,584,191.96

Finding the Fourth Proportional to 2,120,645,680.12, 3,179,490,519.66 and 939,584,191.96

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Solution

The fourth proportional to 2,120,645,680.12, 3,179,490,519.66 and 939,584,191.96 is: 1,408,721,437.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,645,680.12 : 3,179,490,519.66 = 939,584,191.96 : x
  2. Step 2: Convert to fraction form
    2,120,645,680.12/3,179,490,519.66 = 939,584,191.96/x
  3. Step 3: Cross multiply
    2,120,645,680.12x = 3,179,490,519.66 × 939,584,191.96
  4. Step 4: Simplify right side
    2,120,645,680.12x = 2,987,399,030,759,221,760
  5. Step 5: Solve for x
    x = 2,987,399,030,759,221,760/2,120,645,680.12
  6. Step 6: Final answer
    x = 1,408,721,437.42

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1.5x scale

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.