Home / 291,255,756.40-436,883,634.60-266,313,458.80

Finding the Fourth Proportional to 291,255,756.40, 436,883,634.60 and 266,313,458.80

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Solution

The fourth proportional to 291,255,756.40, 436,883,634.60 and 266,313,458.80 is: 399,470,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,255,756.40 : 436,883,634.60 = 266,313,458.80 : x
  2. Step 2: Convert to fraction form
    291,255,756.40/436,883,634.60 = 266,313,458.80/x
  3. Step 3: Cross multiply
    291,255,756.40x = 436,883,634.60 × 266,313,458.80
  4. Step 4: Simplify right side
    291,255,756.40x = 116,347,991,823,441,360
  5. Step 5: Solve for x
    x = 116,347,991,823,441,360/291,255,756.40
  6. Step 6: Final answer
    x = 399,470,188.20

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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.