Home / 1,291,248,206.80-1,936,872,310.20-1,191,479,016.40

Finding the Fourth Proportional to 1,291,248,206.80, 1,936,872,310.20 and 1,191,479,016.40

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Solution

The fourth proportional to 1,291,248,206.80, 1,936,872,310.20 and 1,191,479,016.40 is: 1,787,218,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,248,206.80 : 1,936,872,310.20 = 1,191,479,016.40 : x
  2. Step 2: Convert to fraction form
    1,291,248,206.80/1,936,872,310.20 = 1,191,479,016.40/x
  3. Step 3: Cross multiply
    1,291,248,206.80x = 1,936,872,310.20 × 1,191,479,016.40
  4. Step 4: Simplify right side
    1,291,248,206.80x = 2,307,742,715,049,491,968
  5. Step 5: Solve for x
    x = 2,307,742,715,049,491,968/1,291,248,206.80
  6. Step 6: Final answer
    x = 1,787,218,524.60

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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.