Home / 20,551,800.87-28,361,475.33-12,291,863.01

Finding the Fourth Proportional to 20,551,800.87, 28,361,475.33 and 12,291,863.01

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Solution

The fourth proportional to 20,551,800.87, 28,361,475.33 and 12,291,863.01 is: 16,962,765.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551,800.87 : 28,361,475.33 = 12,291,863.01 : x
  2. Step 2: Convert to fraction form
    20,551,800.87/28,361,475.33 = 12,291,863.01/x
  3. Step 3: Cross multiply
    20,551,800.87x = 28,361,475.33 × 12,291,863.01
  4. Step 4: Simplify right side
    20,551,800.87x = 348,615,369,517,854.50
  5. Step 5: Solve for x
    x = 348,615,369,517,854.50/20,551,800.87
  6. Step 6: Final answer
    x = 16,962,765.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.