Home / 213,624,385.60-320,436,578.40-199,291,662.40

Finding the Fourth Proportional to 213,624,385.60, 320,436,578.40 and 199,291,662.40

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Solution

The fourth proportional to 213,624,385.60, 320,436,578.40 and 199,291,662.40 is: 298,937,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,624,385.60 : 320,436,578.40 = 199,291,662.40 : x
  2. Step 2: Convert to fraction form
    213,624,385.60/320,436,578.40 = 199,291,662.40/x
  3. Step 3: Cross multiply
    213,624,385.60x = 320,436,578.40 × 199,291,662.40
  4. Step 4: Simplify right side
    213,624,385.60x = 63,860,338,403,103,928
  5. Step 5: Solve for x
    x = 63,860,338,403,103,928/213,624,385.60
  6. Step 6: Final answer
    x = 298,937,493.60

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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.