Home / 13,990,639.20-20,985,958.80-5,016,098.40

Finding the Fourth Proportional to 13,990,639.20, 20,985,958.80 and 5,016,098.40

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Solution

The fourth proportional to 13,990,639.20, 20,985,958.80 and 5,016,098.40 is: 7,524,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990,639.20 : 20,985,958.80 = 5,016,098.40 : x
  2. Step 2: Convert to fraction form
    13,990,639.20/20,985,958.80 = 5,016,098.40/x
  3. Step 3: Cross multiply
    13,990,639.20x = 20,985,958.80 × 5,016,098.40
  4. Step 4: Simplify right side
    13,990,639.20x = 105,267,634,359,145.94
  5. Step 5: Solve for x
    x = 105,267,634,359,145.94/13,990,639.20
  6. Step 6: Final answer
    x = 7,524,147.60

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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.