Home / 627,372,636.40-865,769,460.36-345,109,014.72

Finding the Fourth Proportional to 627,372,636.40, 865,769,460.36 and 345,109,014.72

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Solution

The fourth proportional to 627,372,636.40, 865,769,460.36 and 345,109,014.72 is: 476,247,812.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,372,636.40 : 865,769,460.36 = 345,109,014.72 : x
  2. Step 2: Convert to fraction form
    627,372,636.40/865,769,460.36 = 345,109,014.72/x
  3. Step 3: Cross multiply
    627,372,636.40x = 865,769,460.36 × 345,109,014.72
  4. Step 4: Simplify right side
    627,372,636.40x = 298,784,845,439,505,728
  5. Step 5: Solve for x
    x = 298,784,845,439,505,728/627,372,636.40
  6. Step 6: Final answer
    x = 476,247,812.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.