Home / 213,177,280.80-319,340,768.40-122,194,581.60

Finding the Fourth Proportional to 213,177,280.80, 319,340,768.40 and 122,194,581.60

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Solution

The fourth proportional to 213,177,280.80, 319,340,768.40 and 122,194,581.60 is: 183,048,172.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,177,280.80 : 319,340,768.40 = 122,194,581.60 : x
  2. Step 2: Convert to fraction form
    213,177,280.80/319,340,768.40 = 122,194,581.60/x
  3. Step 3: Cross multiply
    213,177,280.80x = 319,340,768.40 × 122,194,581.60
  4. Step 4: Simplify right side
    213,177,280.80x = 39,021,711,582,460,496
  5. Step 5: Solve for x
    x = 39,021,711,582,460,496/213,177,280.80
  6. Step 6: Final answer
    x = 183,048,172.09

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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.