Home / 178,911,380.60-268,367,070.90-76,685,751.80

Finding the Fourth Proportional to 178,911,380.60, 268,367,070.90 and 76,685,751.80

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Solution

The fourth proportional to 178,911,380.60, 268,367,070.90 and 76,685,751.80 is: 115,028,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,911,380.60 : 268,367,070.90 = 76,685,751.80 : x
  2. Step 2: Convert to fraction form
    178,911,380.60/268,367,070.90 = 76,685,751.80/x
  3. Step 3: Cross multiply
    178,911,380.60x = 268,367,070.90 × 76,685,751.80
  4. Step 4: Simplify right side
    178,911,380.60x = 20,579,930,590,330,404
  5. Step 5: Solve for x
    x = 20,579,930,590,330,404/178,911,380.60
  6. Step 6: Final answer
    x = 115,028,627.70

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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.