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Finding the Fourth Proportional to 628,843,625.60, 943,265,438.40 and 628,843,625.60

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Solution

The fourth proportional to 628,843,625.60, 943,265,438.40 and 628,843,625.60 is: 943,265,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,843,625.60 : 943,265,438.40 = 628,843,625.60 : x
  2. Step 2: Convert to fraction form
    628,843,625.60/943,265,438.40 = 628,843,625.60/x
  3. Step 3: Cross multiply
    628,843,625.60x = 943,265,438.40 × 628,843,625.60
  4. Step 4: Simplify right side
    628,843,625.60x = 593,166,458,186,629,504
  5. Step 5: Solve for x
    x = 593,166,458,186,629,504/628,843,625.60
  6. Step 6: Final answer
    x = 943,265,438.40

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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.