Home / 20,368,829.53-28,108,424.22-11,201,472.28

Finding the Fourth Proportional to 20,368,829.53, 28,108,424.22 and 11,201,472.28

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Solution

The fourth proportional to 20,368,829.53, 28,108,424.22 and 11,201,472.28 is: 15,457,723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,829.53 : 28,108,424.22 = 11,201,472.28 : x
  2. Step 2: Convert to fraction form
    20,368,829.53/28,108,424.22 = 11,201,472.28/x
  3. Step 3: Cross multiply
    20,368,829.53x = 28,108,424.22 × 11,201,472.28
  4. Step 4: Simplify right side
    20,368,829.53x = 314,855,734,734,810.56
  5. Step 5: Solve for x
    x = 314,855,734,734,810.56/20,368,829.53
  6. Step 6: Final answer
    x = 15,457,723.49

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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.