Home / 7,778,977.40-11,668,466.10-2,099,192.60

Finding the Fourth Proportional to 7,778,977.40, 11,668,466.10 and 2,099,192.60

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Solution

The fourth proportional to 7,778,977.40, 11,668,466.10 and 2,099,192.60 is: 3,148,788.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778,977.40 : 11,668,466.10 = 2,099,192.60 : x
  2. Step 2: Convert to fraction form
    7,778,977.40/11,668,466.10 = 2,099,192.60/x
  3. Step 3: Cross multiply
    7,778,977.40x = 11,668,466.10 × 2,099,192.60
  4. Step 4: Simplify right side
    7,778,977.40x = 24,494,357,690,470.86
  5. Step 5: Solve for x
    x = 24,494,357,690,470.86/7,778,977.40
  6. Step 6: Final answer
    x = 3,148,788.90

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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.