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Finding the Fourth Proportional to 279,938,342.40, 419,907,513.60 and 234,588,710.40

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Solution

The fourth proportional to 279,938,342.40, 419,907,513.60 and 234,588,710.40 is: 351,883,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938,342.40 : 419,907,513.60 = 234,588,710.40 : x
  2. Step 2: Convert to fraction form
    279,938,342.40/419,907,513.60 = 234,588,710.40/x
  3. Step 3: Cross multiply
    279,938,342.40x = 419,907,513.60 × 234,588,710.40
  4. Step 4: Simplify right side
    279,938,342.40x = 98,505,562,102,694,464
  5. Step 5: Solve for x
    x = 98,505,562,102,694,464/279,938,342.40
  6. Step 6: Final answer
    x = 351,883,065.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.