Home / 21,275,138,045.10-31,912,707,067.65-12,568,008,701.10

Finding the Fourth Proportional to 21,275,138,045.10, 31,912,707,067.65 and 12,568,008,701.10

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Solution

The fourth proportional to 21,275,138,045.10, 31,912,707,067.65 and 12,568,008,701.10 is: 18,852,013,051.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,138,045.10 : 31,912,707,067.65 = 12,568,008,701.10 : x
  2. Step 2: Convert to fraction form
    21,275,138,045.10/31,912,707,067.65 = 12,568,008,701.10/x
  3. Step 3: Cross multiply
    21,275,138,045.10x = 31,912,707,067.65 × 12,568,008,701.10
  4. Step 4: Simplify right side
    21,275,138,045.10x = 401,079,180,101,880,709,120
  5. Step 5: Solve for x
    x = 401,079,180,101,880,709,120/21,275,138,045.10
  6. Step 6: Final answer
    x = 18,852,013,051.65

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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.