Home / 20,615,999.80-30,923,999.70-19,440,268.60

Finding the Fourth Proportional to 20,615,999.80, 30,923,999.70 and 19,440,268.60

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Solution

The fourth proportional to 20,615,999.80, 30,923,999.70 and 19,440,268.60 is: 29,160,402.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615,999.80 : 30,923,999.70 = 19,440,268.60 : x
  2. Step 2: Convert to fraction form
    20,615,999.80/30,923,999.70 = 19,440,268.60/x
  3. Step 3: Cross multiply
    20,615,999.80x = 30,923,999.70 × 19,440,268.60
  4. Step 4: Simplify right side
    20,615,999.80x = 601,170,860,354,319.50
  5. Step 5: Solve for x
    x = 601,170,860,354,319.50/20,615,999.80
  6. Step 6: Final answer
    x = 29,160,402.90

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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.