Home / 419,904,025.60-629,856,038.40-265,715,276.80

Finding the Fourth Proportional to 419,904,025.60, 629,856,038.40 and 265,715,276.80

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Solution

The fourth proportional to 419,904,025.60, 629,856,038.40 and 265,715,276.80 is: 398,572,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,025.60 : 629,856,038.40 = 265,715,276.80 : x
  2. Step 2: Convert to fraction form
    419,904,025.60/629,856,038.40 = 265,715,276.80/x
  3. Step 3: Cross multiply
    419,904,025.60x = 629,856,038.40 × 265,715,276.80
  4. Step 4: Simplify right side
    419,904,025.60x = 167,362,371,587,607,424
  5. Step 5: Solve for x
    x = 167,362,371,587,607,424/419,904,025.60
  6. Step 6: Final answer
    x = 398,572,915.20

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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.