Home / 18,731,921.60-28,097,882.40-5,268,749.60

Finding the Fourth Proportional to 18,731,921.60, 28,097,882.40 and 5,268,749.60

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Solution

The fourth proportional to 18,731,921.60, 28,097,882.40 and 5,268,749.60 is: 7,903,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731,921.60 : 28,097,882.40 = 5,268,749.60 : x
  2. Step 2: Convert to fraction form
    18,731,921.60/28,097,882.40 = 5,268,749.60/x
  3. Step 3: Cross multiply
    18,731,921.60x = 28,097,882.40 × 5,268,749.60
  4. Step 4: Simplify right side
    18,731,921.60x = 148,040,706,655,847.03
  5. Step 5: Solve for x
    x = 148,040,706,655,847.03/18,731,921.60
  6. Step 6: Final answer
    x = 7,903,124.40

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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.