Home / 419,938,529.60-629,907,794.40-189,915,118.40

Finding the Fourth Proportional to 419,938,529.60, 629,907,794.40 and 189,915,118.40

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Solution

The fourth proportional to 419,938,529.60, 629,907,794.40 and 189,915,118.40 is: 284,872,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,938,529.60 : 629,907,794.40 = 189,915,118.40 : x
  2. Step 2: Convert to fraction form
    419,938,529.60/629,907,794.40 = 189,915,118.40/x
  3. Step 3: Cross multiply
    419,938,529.60x = 629,907,794.40 × 189,915,118.40
  4. Step 4: Simplify right side
    419,938,529.60x = 119,629,013,354,558,864
  5. Step 5: Solve for x
    x = 119,629,013,354,558,864/419,938,529.60
  6. Step 6: Final answer
    x = 284,872,677.60

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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.