Home / 627,372,641.40-865,769,467.26-345,109,019.72

Finding the Fourth Proportional to 627,372,641.40, 865,769,467.26 and 345,109,019.72

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Solution

The fourth proportional to 627,372,641.40, 865,769,467.26 and 345,109,019.72 is: 476,247,818.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,372,641.40 : 865,769,467.26 = 345,109,019.72 : x
  2. Step 2: Convert to fraction form
    627,372,641.40/865,769,467.26 = 345,109,019.72/x
  3. Step 3: Cross multiply
    627,372,641.40x = 865,769,467.26 × 345,109,019.72
  4. Step 4: Simplify right side
    627,372,641.40x = 298,784,852,149,605,248
  5. Step 5: Solve for x
    x = 298,784,852,149,605,248/627,372,641.40
  6. Step 6: Final answer
    x = 476,247,818.97

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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.