Home / 789,631,573,486.28-1,089,691,571,411-451,686,115,822.24

Finding the Fourth Proportional to 789,631,573,486.28, 1,089,691,571,411 and 451,686,115,822.24

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Solution

The fourth proportional to 789,631,573,486.28, 1,089,691,571,411 and 451,686,115,822.24 is: 623,326,839,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,631,573,486.28 : 1,089,691,571,411 = 451,686,115,822.24 : x
  2. Step 2: Convert to fraction form
    789,631,573,486.28/1,089,691,571,411 = 451,686,115,822.24/x
  3. Step 3: Cross multiply
    789,631,573,486.28x = 1,089,691,571,411 × 451,686,115,822.24
  4. Step 4: Simplify right side
    789,631,573,486.28x = 492,198,553,334,867,667,451,904
  5. Step 5: Solve for x
    x = 492,198,553,334,867,667,451,904/789,631,573,486.28
  6. Step 6: Final answer
    x = 623,326,839,834.65

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Double scale
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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.