Home / 66,373,609.20-99,574,410.60-28,015,378.80

Finding the Fourth Proportional to 66,373,609.20, 99,574,410.60 and 28,015,378.80

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Solution

The fourth proportional to 66,373,609.20, 99,574,410.60 and 28,015,378.80 is: 42,028,976.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,373,609.20 : 99,574,410.60 = 28,015,378.80 : x
  2. Step 2: Convert to fraction form
    66,373,609.20/99,574,410.60 = 28,015,378.80/x
  3. Step 3: Cross multiply
    66,373,609.20x = 99,574,410.60 × 28,015,378.80
  4. Step 4: Simplify right side
    66,373,609.20x = 2,789,614,831,745,735
  5. Step 5: Solve for x
    x = 2,789,614,831,745,735/66,373,609.20
  6. Step 6: Final answer
    x = 42,028,976.05

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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.