Home / 178,911,375.60-268,367,063.40-76,685,746.80

Finding the Fourth Proportional to 178,911,375.60, 268,367,063.40 and 76,685,746.80

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Solution

The fourth proportional to 178,911,375.60, 268,367,063.40 and 76,685,746.80 is: 115,028,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,911,375.60 : 268,367,063.40 = 76,685,746.80 : x
  2. Step 2: Convert to fraction form
    178,911,375.60/268,367,063.40 = 76,685,746.80/x
  3. Step 3: Cross multiply
    178,911,375.60x = 268,367,063.40 × 76,685,746.80
  4. Step 4: Simplify right side
    178,911,375.60x = 20,579,928,673,351,948
  5. Step 5: Solve for x
    x = 20,579,928,673,351,948/178,911,375.60
  6. Step 6: Final answer
    x = 115,028,620.20

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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.