Home / 280,049,414.60-420,074,121.90-118,470,355.40

Finding the Fourth Proportional to 280,049,414.60, 420,074,121.90 and 118,470,355.40

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Solution

The fourth proportional to 280,049,414.60, 420,074,121.90 and 118,470,355.40 is: 177,705,533.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,049,414.60 : 420,074,121.90 = 118,470,355.40 : x
  2. Step 2: Convert to fraction form
    280,049,414.60/420,074,121.90 = 118,470,355.40/x
  3. Step 3: Cross multiply
    280,049,414.60x = 420,074,121.90 × 118,470,355.40
  4. Step 4: Simplify right side
    280,049,414.60x = 49,766,330,515,835,920
  5. Step 5: Solve for x
    x = 49,766,330,515,835,920/280,049,414.60
  6. Step 6: Final answer
    x = 177,705,533.10

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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.