Home / 205,874,401.40-308,811,602.10-69,557,816.60

Finding the Fourth Proportional to 205,874,401.40, 308,811,602.10 and 69,557,816.60

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Solution

The fourth proportional to 205,874,401.40, 308,811,602.10 and 69,557,816.60 is: 104,336,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,874,401.40 : 308,811,602.10 = 69,557,816.60 : x
  2. Step 2: Convert to fraction form
    205,874,401.40/308,811,602.10 = 69,557,816.60/x
  3. Step 3: Cross multiply
    205,874,401.40x = 308,811,602.10 × 69,557,816.60
  4. Step 4: Simplify right side
    205,874,401.40x = 21,480,260,782,823,976
  5. Step 5: Solve for x
    x = 21,480,260,782,823,976/205,874,401.40
  6. Step 6: Final answer
    x = 104,336,724.90

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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.