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Finding the Fourth Proportional to 3,551,347,218.60, 4,980,049,039.80 and 3,551,347,218.60

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Solution

The fourth proportional to 3,551,347,218.60, 4,980,049,039.80 and 3,551,347,218.60 is: 4,980,049,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551,347,218.60 : 4,980,049,039.80 = 3,551,347,218.60 : x
  2. Step 2: Convert to fraction form
    3,551,347,218.60/4,980,049,039.80 = 3,551,347,218.60/x
  3. Step 3: Cross multiply
    3,551,347,218.60x = 4,980,049,039.80 × 3,551,347,218.60
  4. Step 4: Simplify right side
    3,551,347,218.60x = 17,685,883,305,985,331,200
  5. Step 5: Solve for x
    x = 17,685,883,305,985,331,200/3,551,347,218.60
  6. Step 6: Final answer
    x = 4,980,049,039.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.