Home / 19,011,372.80-28,517,059.20-13,909,539.20

Finding the Fourth Proportional to 19,011,372.80, 28,517,059.20 and 13,909,539.20

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Solution

The fourth proportional to 19,011,372.80, 28,517,059.20 and 13,909,539.20 is: 20,864,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,011,372.80 : 28,517,059.20 = 13,909,539.20 : x
  2. Step 2: Convert to fraction form
    19,011,372.80/28,517,059.20 = 13,909,539.20/x
  3. Step 3: Cross multiply
    19,011,372.80x = 28,517,059.20 × 13,909,539.20
  4. Step 4: Simplify right side
    19,011,372.80x = 396,659,152,811,120.62
  5. Step 5: Solve for x
    x = 396,659,152,811,120.62/19,011,372.80
  6. Step 6: Final answer
    x = 20,864,308.80

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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.