Home / 20,697,896.10-28,561,916.81-11,875,477.22

Finding the Fourth Proportional to 20,697,896.10, 28,561,916.81 and 11,875,477.22

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Solution

The fourth proportional to 20,697,896.10, 28,561,916.81 and 11,875,477.22 is: 16,387,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697,896.10 : 28,561,916.81 = 11,875,477.22 : x
  2. Step 2: Convert to fraction form
    20,697,896.10/28,561,916.81 = 11,875,477.22/x
  3. Step 3: Cross multiply
    20,697,896.10x = 28,561,916.81 × 11,875,477.22
  4. Step 4: Simplify right side
    20,697,896.10x = 339,186,392,234,503.06
  5. Step 5: Solve for x
    x = 339,186,392,234,503.06/20,697,896.10
  6. Step 6: Final answer
    x = 16,387,481.64

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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.