Home / 419,904,449.60-629,856,674.40-290,657,998.40

Finding the Fourth Proportional to 419,904,449.60, 629,856,674.40 and 290,657,998.40

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Solution

The fourth proportional to 419,904,449.60, 629,856,674.40 and 290,657,998.40 is: 435,986,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,449.60 : 629,856,674.40 = 290,657,998.40 : x
  2. Step 2: Convert to fraction form
    419,904,449.60/629,856,674.40 = 290,657,998.40/x
  3. Step 3: Cross multiply
    419,904,449.60x = 629,856,674.40 × 290,657,998.40
  4. Step 4: Simplify right side
    419,904,449.60x = 183,072,880,259,984,512
  5. Step 5: Solve for x
    x = 183,072,880,259,984,512/419,904,449.60
  6. Step 6: Final answer
    x = 435,986,997.60

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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.