Home / 213,624,389.60-320,436,584.40-199,291,666.40

Finding the Fourth Proportional to 213,624,389.60, 320,436,584.40 and 199,291,666.40

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Solution

The fourth proportional to 213,624,389.60, 320,436,584.40 and 199,291,666.40 is: 298,937,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,624,389.60 : 320,436,584.40 = 199,291,666.40 : x
  2. Step 2: Convert to fraction form
    213,624,389.60/320,436,584.40 = 199,291,666.40/x
  3. Step 3: Cross multiply
    213,624,389.60x = 320,436,584.40 × 199,291,666.40
  4. Step 4: Simplify right side
    213,624,389.60x = 63,860,340,880,600,240
  5. Step 5: Solve for x
    x = 63,860,340,880,600,240/213,624,389.60
  6. Step 6: Final answer
    x = 298,937,499.60

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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.