Home / 13,329,371.60-19,994,057.40-12,290,109.20

Finding the Fourth Proportional to 13,329,371.60, 19,994,057.40 and 12,290,109.20

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Solution

The fourth proportional to 13,329,371.60, 19,994,057.40 and 12,290,109.20 is: 18,435,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329,371.60 : 19,994,057.40 = 12,290,109.20 : x
  2. Step 2: Convert to fraction form
    13,329,371.60/19,994,057.40 = 12,290,109.20/x
  3. Step 3: Cross multiply
    13,329,371.60x = 19,994,057.40 × 12,290,109.20
  4. Step 4: Simplify right side
    13,329,371.60x = 245,729,148,797,068.03
  5. Step 5: Solve for x
    x = 245,729,148,797,068.03/13,329,371.60
  6. Step 6: Final answer
    x = 18,435,163.80

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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.