Home / 419,907,739.60-629,861,609.40-189,884,328.40

Finding the Fourth Proportional to 419,907,739.60, 629,861,609.40 and 189,884,328.40

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Solution

The fourth proportional to 419,907,739.60, 629,861,609.40 and 189,884,328.40 is: 284,826,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,907,739.60 : 629,861,609.40 = 189,884,328.40 : x
  2. Step 2: Convert to fraction form
    419,907,739.60/629,861,609.40 = 189,884,328.40/x
  3. Step 3: Cross multiply
    419,907,739.60x = 629,861,609.40 × 189,884,328.40
  4. Step 4: Simplify right side
    419,907,739.60x = 119,600,848,685,862,128
  5. Step 5: Solve for x
    x = 119,600,848,685,862,128/419,907,739.60
  6. Step 6: Final answer
    x = 284,826,492.60

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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.