Home / 19,920,219.20-29,856,709.20-17,888,933.60

Finding the Fourth Proportional to 19,920,219.20, 29,856,709.20 and 17,888,933.60

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Solution

The fourth proportional to 19,920,219.20, 29,856,709.20 and 17,888,933.60 is: 26,812,189.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920,219.20 : 29,856,709.20 = 17,888,933.60 : x
  2. Step 2: Convert to fraction form
    19,920,219.20/29,856,709.20 = 17,888,933.60/x
  3. Step 3: Cross multiply
    19,920,219.20x = 29,856,709.20 × 17,888,933.60
  4. Step 4: Simplify right side
    19,920,219.20x = 534,104,688,393,309.12
  5. Step 5: Solve for x
    x = 534,104,688,393,309.12/19,920,219.20
  6. Step 6: Final answer
    x = 26,812,189.32

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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.