Home / 627,372,637.40-865,769,461.74-345,109,015.72

Finding the Fourth Proportional to 627,372,637.40, 865,769,461.74 and 345,109,015.72

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Solution

The fourth proportional to 627,372,637.40, 865,769,461.74 and 345,109,015.72 is: 476,247,813.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,372,637.40 : 865,769,461.74 = 345,109,015.72 : x
  2. Step 2: Convert to fraction form
    627,372,637.40/865,769,461.74 = 345,109,015.72/x
  3. Step 3: Cross multiply
    627,372,637.40x = 865,769,461.74 × 345,109,015.72
  4. Step 4: Simplify right side
    627,372,637.40x = 298,784,846,781,525,632
  5. Step 5: Solve for x
    x = 298,784,846,781,525,632/627,372,637.40
  6. Step 6: Final answer
    x = 476,247,813.45

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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.