Home / 646,768,618.95-969,798,634.42-318,522,313.83

Finding the Fourth Proportional to 646,768,618.95, 969,798,634.42 and 318,522,313.83

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Solution

The fourth proportional to 646,768,618.95, 969,798,634.42 and 318,522,313.83 is: 477,608,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,768,618.95 : 969,798,634.42 = 318,522,313.83 : x
  2. Step 2: Convert to fraction form
    646,768,618.95/969,798,634.42 = 318,522,313.83/x
  3. Step 3: Cross multiply
    646,768,618.95x = 969,798,634.42 × 318,522,313.83
  4. Step 4: Simplify right side
    646,768,618.95x = 308,902,504,984,632,640
  5. Step 5: Solve for x
    x = 308,902,504,984,632,640/646,768,618.95
  6. Step 6: Final answer
    x = 477,608,987.10

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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.