Home / 20,119,015.40-30,186,396.30-7,340,811.80

Finding the Fourth Proportional to 20,119,015.40, 30,186,396.30 and 7,340,811.80

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Solution

The fourth proportional to 20,119,015.40, 30,186,396.30 and 7,340,811.80 is: 11,014,090.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119,015.40 : 30,186,396.30 = 7,340,811.80 : x
  2. Step 2: Convert to fraction form
    20,119,015.40/30,186,396.30 = 7,340,811.80/x
  3. Step 3: Cross multiply
    20,119,015.40x = 30,186,396.30 × 7,340,811.80
  4. Step 4: Simplify right side
    20,119,015.40x = 221,592,654,158,516.34
  5. Step 5: Solve for x
    x = 221,592,654,158,516.34/20,119,015.40
  6. Step 6: Final answer
    x = 11,014,090.39

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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.