Home / 178,911,376.60-268,367,064.90-76,685,747.80

Finding the Fourth Proportional to 178,911,376.60, 268,367,064.90 and 76,685,747.80

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Solution

The fourth proportional to 178,911,376.60, 268,367,064.90 and 76,685,747.80 is: 115,028,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,911,376.60 : 268,367,064.90 = 76,685,747.80 : x
  2. Step 2: Convert to fraction form
    178,911,376.60/268,367,064.90 = 76,685,747.80/x
  3. Step 3: Cross multiply
    178,911,376.60x = 268,367,064.90 × 76,685,747.80
  4. Step 4: Simplify right side
    178,911,376.60x = 20,579,929,056,747,632
  5. Step 5: Solve for x
    x = 20,579,929,056,747,632/178,911,376.60
  6. Step 6: Final answer
    x = 115,028,621.70

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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.