Home / 12,952,629.60-19,428,944.40-12,579,381.60

Finding the Fourth Proportional to 12,952,629.60, 19,428,944.40 and 12,579,381.60

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Solution

The fourth proportional to 12,952,629.60, 19,428,944.40 and 12,579,381.60 is: 18,869,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,952,629.60 : 19,428,944.40 = 12,579,381.60 : x
  2. Step 2: Convert to fraction form
    12,952,629.60/19,428,944.40 = 12,579,381.60/x
  3. Step 3: Cross multiply
    12,952,629.60x = 19,428,944.40 × 12,579,381.60
  4. Step 4: Simplify right side
    12,952,629.60x = 244,404,105,692,783
  5. Step 5: Solve for x
    x = 244,404,105,692,783/12,952,629.60
  6. Step 6: Final answer
    x = 18,869,072.40

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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.