Home / 15,322,916.70-21,145,769.50-8,447,644.80

Finding the Fourth Proportional to 15,322,916.70, 21,145,769.50 and 8,447,644.80

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Solution

The fourth proportional to 15,322,916.70, 21,145,769.50 and 8,447,644.80 is: 11,657,829.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322,916.70 : 21,145,769.50 = 8,447,644.80 : x
  2. Step 2: Convert to fraction form
    15,322,916.70/21,145,769.50 = 8,447,644.80/x
  3. Step 3: Cross multiply
    15,322,916.70x = 21,145,769.50 × 8,447,644.80
  4. Step 4: Simplify right side
    15,322,916.70x = 178,631,949,758,673.62
  5. Step 5: Solve for x
    x = 178,631,949,758,673.62/15,322,916.70
  6. Step 6: Final answer
    x = 11,657,829.46

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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.