Home / 12,490,903.20-18,743,353.20-5,301,213.60

Finding the Fourth Proportional to 12,490,903.20, 18,743,353.20 and 5,301,213.60

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Solution

The fourth proportional to 12,490,903.20, 18,743,353.20 and 5,301,213.60 is: 7,954,790.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490,903.20 : 18,743,353.20 = 5,301,213.60 : x
  2. Step 2: Convert to fraction form
    12,490,903.20/18,743,353.20 = 5,301,213.60/x
  3. Step 3: Cross multiply
    12,490,903.20x = 18,743,353.20 × 5,301,213.60
  4. Step 4: Simplify right side
    12,490,903.20x = 99,362,518,893,443.52
  5. Step 5: Solve for x
    x = 99,362,518,893,443.52/12,490,903.20
  6. Step 6: Final answer
    x = 7,954,790.56

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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.