Home / 15,172,147,571.38-20,937,109,108.20-8,398,243,810.29

Finding the Fourth Proportional to 15,172,147,571.38, 20,937,109,108.20 and 8,398,243,810.29

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Solution

The fourth proportional to 15,172,147,571.38, 20,937,109,108.20 and 8,398,243,810.29 is: 11,589,324,856.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172,147,571.38 : 20,937,109,108.20 = 8,398,243,810.29 : x
  2. Step 2: Convert to fraction form
    15,172,147,571.38/20,937,109,108.20 = 8,398,243,810.29/x
  3. Step 3: Cross multiply
    15,172,147,571.38x = 20,937,109,108.20 × 8,398,243,810.29
  4. Step 4: Simplify right side
    15,172,147,571.38x = 175,834,946,973,307,043,840
  5. Step 5: Solve for x
    x = 175,834,946,973,307,043,840/15,172,147,571.38
  6. Step 6: Final answer
    x = 11,589,324,856.36

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Double scale
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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.