Home / 8,163,388.40-12,249,748.20-3,118,319.60

Finding the Fourth Proportional to 8,163,388.40, 12,249,748.20 and 3,118,319.60

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Solution

The fourth proportional to 8,163,388.40, 12,249,748.20 and 3,118,319.60 is: 4,679,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163,388.40 : 12,249,748.20 = 3,118,319.60 : x
  2. Step 2: Convert to fraction form
    8,163,388.40/12,249,748.20 = 3,118,319.60/x
  3. Step 3: Cross multiply
    8,163,388.40x = 12,249,748.20 × 3,118,319.60
  4. Step 4: Simplify right side
    8,163,388.40x = 38,198,629,907,124.72
  5. Step 5: Solve for x
    x = 38,198,629,907,124.72/8,163,388.40
  6. Step 6: Final answer
    x = 4,679,261.61

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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.