Home / 2,790,179,138.63-4,183,815,465.92-1,315,923,109.11

Finding the Fourth Proportional to 2,790,179,138.63, 4,183,815,465.92 and 1,315,923,109.11

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Solution

The fourth proportional to 2,790,179,138.63, 4,183,815,465.92 and 1,315,923,109.11 is: 1,973,199,275.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790,179,138.63 : 4,183,815,465.92 = 1,315,923,109.11 : x
  2. Step 2: Convert to fraction form
    2,790,179,138.63/4,183,815,465.92 = 1,315,923,109.11/x
  3. Step 3: Cross multiply
    2,790,179,138.63x = 4,183,815,465.92 × 1,315,923,109.11
  4. Step 4: Simplify right side
    2,790,179,138.63x = 5,505,579,455,859,107,840
  5. Step 5: Solve for x
    x = 5,505,579,455,859,107,840/2,790,179,138.63
  6. Step 6: Final answer
    x = 1,973,199,275.86

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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.