Home / 280,303,584.30-420,455,376.45-75,831,659.55

Finding the Fourth Proportional to 280,303,584.30, 420,455,376.45 and 75,831,659.55

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Solution

The fourth proportional to 280,303,584.30, 420,455,376.45 and 75,831,659.55 is: 113,747,489.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,303,584.30 : 420,455,376.45 = 75,831,659.55 : x
  2. Step 2: Convert to fraction form
    280,303,584.30/420,455,376.45 = 75,831,659.55/x
  3. Step 3: Cross multiply
    280,303,584.30x = 420,455,376.45 × 75,831,659.55
  4. Step 4: Simplify right side
    280,303,584.30x = 31,883,828,962,923,484
  5. Step 5: Solve for x
    x = 31,883,828,962,923,484/280,303,584.30
  6. Step 6: Final answer
    x = 113,747,489.33

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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.