Home / 627,372,634.40-865,769,457.62-345,109,012.72

Finding the Fourth Proportional to 627,372,634.40, 865,769,457.62 and 345,109,012.72

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Solution

The fourth proportional to 627,372,634.40, 865,769,457.62 and 345,109,012.72 is: 476,247,809.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,372,634.40 : 865,769,457.62 = 345,109,012.72 : x
  2. Step 2: Convert to fraction form
    627,372,634.40/865,769,457.62 = 345,109,012.72/x
  3. Step 3: Cross multiply
    627,372,634.40x = 865,769,457.62 × 345,109,012.72
  4. Step 4: Simplify right side
    627,372,634.40x = 298,784,842,762,368,128
  5. Step 5: Solve for x
    x = 298,784,842,762,368,128/627,372,634.40
  6. Step 6: Final answer
    x = 476,247,809.32

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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.