Home / 13,329,042.60-19,993,563.90-12,289,780.20

Finding the Fourth Proportional to 13,329,042.60, 19,993,563.90 and 12,289,780.20

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Solution

The fourth proportional to 13,329,042.60, 19,993,563.90 and 12,289,780.20 is: 18,434,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329,042.60 : 19,993,563.90 = 12,289,780.20 : x
  2. Step 2: Convert to fraction form
    13,329,042.60/19,993,563.90 = 12,289,780.20/x
  3. Step 3: Cross multiply
    13,329,042.60x = 19,993,563.90 × 12,289,780.20
  4. Step 4: Simplify right side
    13,329,042.60x = 245,716,505,745,654.75
  5. Step 5: Solve for x
    x = 245,716,505,745,654.75/13,329,042.60
  6. Step 6: Final answer
    x = 18,434,670.30

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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.