Home / 419,904,501.60-629,856,752.40-265,715,752.80

Finding the Fourth Proportional to 419,904,501.60, 629,856,752.40 and 265,715,752.80

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Solution

The fourth proportional to 419,904,501.60, 629,856,752.40 and 265,715,752.80 is: 398,573,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,501.60 : 629,856,752.40 = 265,715,752.80 : x
  2. Step 2: Convert to fraction form
    419,904,501.60/629,856,752.40 = 265,715,752.80/x
  3. Step 3: Cross multiply
    419,904,501.60x = 629,856,752.40 × 265,715,752.80
  4. Step 4: Simplify right side
    419,904,501.60x = 167,362,861,120,129,216
  5. Step 5: Solve for x
    x = 167,362,861,120,129,216/419,904,501.60
  6. Step 6: Final answer
    x = 398,573,629.20

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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.