Home / 20,414,556.40-30,621,834.60-8,289,828.40

Finding the Fourth Proportional to 20,414,556.40, 30,621,834.60 and 8,289,828.40

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Solution

The fourth proportional to 20,414,556.40, 30,621,834.60 and 8,289,828.40 is: 12,434,742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414,556.40 : 30,621,834.60 = 8,289,828.40 : x
  2. Step 2: Convert to fraction form
    20,414,556.40/30,621,834.60 = 8,289,828.40/x
  3. Step 3: Cross multiply
    20,414,556.40x = 30,621,834.60 × 8,289,828.40
  4. Step 4: Simplify right side
    20,414,556.40x = 253,849,754,127,182.66
  5. Step 5: Solve for x
    x = 253,849,754,127,182.66/20,414,556.40
  6. Step 6: Final answer
    x = 12,434,742.60

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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.