Home / 209,323,481.80-313,537,325.10-186,630,003.40

Finding the Fourth Proportional to 209,323,481.80, 313,537,325.10 and 186,630,003.40

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Solution

The fourth proportional to 209,323,481.80, 313,537,325.10 and 186,630,003.40 is: 279,545,665.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,323,481.80 : 313,537,325.10 = 186,630,003.40 : x
  2. Step 2: Convert to fraction form
    209,323,481.80/313,537,325.10 = 186,630,003.40/x
  3. Step 3: Cross multiply
    209,323,481.80x = 313,537,325.10 × 186,630,003.40
  4. Step 4: Simplify right side
    209,323,481.80x = 58,515,472,049,439,912
  5. Step 5: Solve for x
    x = 58,515,472,049,439,912/209,323,481.80
  6. Step 6: Final answer
    x = 279,545,665.62

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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.