Home / 20,831,999.60-31,247,999.40-8,863,180.40

Finding the Fourth Proportional to 20,831,999.60, 31,247,999.40 and 8,863,180.40

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Solution

The fourth proportional to 20,831,999.60, 31,247,999.40 and 8,863,180.40 is: 13,294,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,831,999.60 : 31,247,999.40 = 8,863,180.40 : x
  2. Step 2: Convert to fraction form
    20,831,999.60/31,247,999.40 = 8,863,180.40/x
  3. Step 3: Cross multiply
    20,831,999.60x = 31,247,999.40 × 8,863,180.40
  4. Step 4: Simplify right side
    20,831,999.60x = 276,956,655,821,291.75
  5. Step 5: Solve for x
    x = 276,956,655,821,291.75/20,831,999.60
  6. Step 6: Final answer
    x = 13,294,770.60

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1.5x scale

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.