Home / 185,430,910.40-278,183,690.40-155,347,121.60

Finding the Fourth Proportional to 185,430,910.40, 278,183,690.40 and 155,347,121.60

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Solution

The fourth proportional to 185,430,910.40, 278,183,690.40 and 155,347,121.60 is: 233,051,951.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,430,910.40 : 278,183,690.40 = 155,347,121.60 : x
  2. Step 2: Convert to fraction form
    185,430,910.40/278,183,690.40 = 155,347,121.60/x
  3. Step 3: Cross multiply
    185,430,910.40x = 278,183,690.40 × 155,347,121.60
  4. Step 4: Simplify right side
    185,430,910.40x = 43,215,035,579,705,544
  5. Step 5: Solve for x
    x = 43,215,035,579,705,544/185,430,910.40
  6. Step 6: Final answer
    x = 233,051,951.73

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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.