Home / 11,191,520.80-16,787,281.20-7,790,298.40

Finding the Fourth Proportional to 11,191,520.80, 16,787,281.20 and 7,790,298.40

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Solution

The fourth proportional to 11,191,520.80, 16,787,281.20 and 7,790,298.40 is: 11,685,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191,520.80 : 16,787,281.20 = 7,790,298.40 : x
  2. Step 2: Convert to fraction form
    11,191,520.80/16,787,281.20 = 7,790,298.40/x
  3. Step 3: Cross multiply
    11,191,520.80x = 16,787,281.20 × 7,790,298.40
  4. Step 4: Simplify right side
    11,191,520.80x = 130,777,929,872,710.08
  5. Step 5: Solve for x
    x = 130,777,929,872,710.08/11,191,520.80
  6. Step 6: Final answer
    x = 11,685,447.60

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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.