Home / 20,649,032.85-30,945,647.78-7,862,562.39

Finding the Fourth Proportional to 20,649,032.85, 30,945,647.78 and 7,862,562.39

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Solution

The fourth proportional to 20,649,032.85, 30,945,647.78 and 7,862,562.39 is: 11,783,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649,032.85 : 30,945,647.78 = 7,862,562.39 : x
  2. Step 2: Convert to fraction form
    20,649,032.85/30,945,647.78 = 7,862,562.39/x
  3. Step 3: Cross multiply
    20,649,032.85x = 30,945,647.78 × 7,862,562.39
  4. Step 4: Simplify right side
    20,649,032.85x = 243,312,086,475,432.97
  5. Step 5: Solve for x
    x = 243,312,086,475,432.97/20,649,032.85
  6. Step 6: Final answer
    x = 11,783,219.50

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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.