Home / 405,503,999.60-608,255,999.40-329,062,809.20

Finding the Fourth Proportional to 405,503,999.60, 608,255,999.40 and 329,062,809.20

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Solution

The fourth proportional to 405,503,999.60, 608,255,999.40 and 329,062,809.20 is: 493,594,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,503,999.60 : 608,255,999.40 = 329,062,809.20 : x
  2. Step 2: Convert to fraction form
    405,503,999.60/608,255,999.40 = 329,062,809.20/x
  3. Step 3: Cross multiply
    405,503,999.60x = 608,255,999.40 × 329,062,809.20
  4. Step 4: Simplify right side
    405,503,999.60x = 200,154,427,875,317,504
  5. Step 5: Solve for x
    x = 200,154,427,875,317,504/405,503,999.60
  6. Step 6: Final answer
    x = 493,594,213.80

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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.