Home / 21,199,309,305.24-29,256,197,317.38-12,166,995,198.36

Finding the Fourth Proportional to 21,199,309,305.24, 29,256,197,317.38 and 12,166,995,198.36

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Solution

The fourth proportional to 21,199,309,305.24, 29,256,197,317.38 and 12,166,995,198.36 is: 16,791,113,670.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199,309,305.24 : 29,256,197,317.38 = 12,166,995,198.36 : x
  2. Step 2: Convert to fraction form
    21,199,309,305.24/29,256,197,317.38 = 12,166,995,198.36/x
  3. Step 3: Cross multiply
    21,199,309,305.24x = 29,256,197,317.38 × 12,166,995,198.36
  4. Step 4: Simplify right side
    21,199,309,305.24x = 355,960,012,282,835,173,376
  5. Step 5: Solve for x
    x = 355,960,012,282,835,173,376/21,199,309,305.24
  6. Step 6: Final answer
    x = 16,791,113,670.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.