Home / 13,428,618.80-20,142,928.20-4,452,004.40

Finding the Fourth Proportional to 13,428,618.80, 20,142,928.20 and 4,452,004.40

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Solution

The fourth proportional to 13,428,618.80, 20,142,928.20 and 4,452,004.40 is: 6,678,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428,618.80 : 20,142,928.20 = 4,452,004.40 : x
  2. Step 2: Convert to fraction form
    13,428,618.80/20,142,928.20 = 4,452,004.40/x
  3. Step 3: Cross multiply
    13,428,618.80x = 20,142,928.20 × 4,452,004.40
  4. Step 4: Simplify right side
    13,428,618.80x = 89,676,404,975,284.08
  5. Step 5: Solve for x
    x = 89,676,404,975,284.08/13,428,618.80
  6. Step 6: Final answer
    x = 6,678,006.60

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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.