Home / 55,212,999.60-82,819,499.40-18,862,435.20

Finding the Fourth Proportional to 55,212,999.60, 82,819,499.40 and 18,862,435.20

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Solution

The fourth proportional to 55,212,999.60, 82,819,499.40 and 18,862,435.20 is: 28,293,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,212,999.60 : 82,819,499.40 = 18,862,435.20 : x
  2. Step 2: Convert to fraction form
    55,212,999.60/82,819,499.40 = 18,862,435.20/x
  3. Step 3: Cross multiply
    55,212,999.60x = 82,819,499.40 × 18,862,435.20
  4. Step 4: Simplify right side
    55,212,999.60x = 1,562,177,440,728,939
  5. Step 5: Solve for x
    x = 1,562,177,440,728,939/55,212,999.60
  6. Step 6: Final answer
    x = 28,293,652.80

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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.