Home / 18,428,419.20-27,642,628.80-8,842,166.40

Finding the Fourth Proportional to 18,428,419.20, 27,642,628.80 and 8,842,166.40

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Solution

The fourth proportional to 18,428,419.20, 27,642,628.80 and 8,842,166.40 is: 13,263,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428,419.20 : 27,642,628.80 = 8,842,166.40 : x
  2. Step 2: Convert to fraction form
    18,428,419.20/27,642,628.80 = 8,842,166.40/x
  3. Step 3: Cross multiply
    18,428,419.20x = 27,642,628.80 × 8,842,166.40
  4. Step 4: Simplify right side
    18,428,419.20x = 244,420,723,583,032.34
  5. Step 5: Solve for x
    x = 244,420,723,583,032.34/18,428,419.20
  6. Step 6: Final answer
    x = 13,263,249.60

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Similar ratio
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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.