Home / 13,292,226.20-19,938,339.30-8,505,320.60

Finding the Fourth Proportional to 13,292,226.20, 19,938,339.30 and 8,505,320.60

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Solution

The fourth proportional to 13,292,226.20, 19,938,339.30 and 8,505,320.60 is: 12,757,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292,226.20 : 19,938,339.30 = 8,505,320.60 : x
  2. Step 2: Convert to fraction form
    13,292,226.20/19,938,339.30 = 8,505,320.60/x
  3. Step 3: Cross multiply
    13,292,226.20x = 19,938,339.30 × 8,505,320.60
  4. Step 4: Simplify right side
    13,292,226.20x = 169,581,967,978,079.59
  5. Step 5: Solve for x
    x = 169,581,967,978,079.59/13,292,226.20
  6. Step 6: Final answer
    x = 12,757,980.90

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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.