Home / 19,197,171-28,806,384.78-11,501,905.32

Finding the Fourth Proportional to 19,197,171, 28,806,384.78 and 11,501,905.32

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Solution

The fourth proportional to 19,197,171, 28,806,384.78 and 11,501,905.32 is: 17,259,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,197,171 : 28,806,384.78 = 11,501,905.32 : x
  2. Step 2: Convert to fraction form
    19,197,171/28,806,384.78 = 11,501,905.32/x
  3. Step 3: Cross multiply
    19,197,171x = 28,806,384.78 × 11,501,905.32
  4. Step 4: Simplify right side
    19,197,171x = 331,328,310,351,049.06
  5. Step 5: Solve for x
    x = 331,328,310,351,049.06/19,197,171
  6. Step 6: Final answer
    x = 17,259,225.87

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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.