Home / 260,783,999.60-391,175,999.40-131,341,593.20

Finding the Fourth Proportional to 260,783,999.60, 391,175,999.40 and 131,341,593.20

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Solution

The fourth proportional to 260,783,999.60, 391,175,999.40 and 131,341,593.20 is: 197,012,389.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,783,999.60 : 391,175,999.40 = 131,341,593.20 : x
  2. Step 2: Convert to fraction form
    260,783,999.60/391,175,999.40 = 131,341,593.20/x
  3. Step 3: Cross multiply
    260,783,999.60x = 391,175,999.40 × 131,341,593.20
  4. Step 4: Simplify right side
    260,783,999.60x = 51,377,678,982,798,240
  5. Step 5: Solve for x
    x = 51,377,678,982,798,240/260,783,999.60
  6. Step 6: Final answer
    x = 197,012,389.80

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1.5x scale

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.