Home / 789,631,573,518.40-1,089,691,571,455.20-451,686,115,854.24

Finding the Fourth Proportional to 789,631,573,518.40, 1,089,691,571,455.20 and 451,686,115,854.24

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Solution

The fourth proportional to 789,631,573,518.40, 1,089,691,571,455.20 and 451,686,115,854.24 is: 623,326,839,878.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,631,573,518.40 : 1,089,691,571,455.20 = 451,686,115,854.24 : x
  2. Step 2: Convert to fraction form
    789,631,573,518.40/1,089,691,571,455.20 = 451,686,115,854.24/x
  3. Step 3: Cross multiply
    789,631,573,518.40x = 1,089,691,571,455.20 × 451,686,115,854.24
  4. Step 4: Simplify right side
    789,631,573,518.40x = 492,198,553,389,702,253,117,440
  5. Step 5: Solve for x
    x = 492,198,553,389,702,253,117,440/789,631,573,518.40
  6. Step 6: Final answer
    x = 623,326,839,878.74

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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.