Home / 788,972,537.70-1,183,458,806.55-329,240,643.30

Finding the Fourth Proportional to 788,972,537.70, 1,183,458,806.55 and 329,240,643.30

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Solution

The fourth proportional to 788,972,537.70, 1,183,458,806.55 and 329,240,643.30 is: 493,860,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,972,537.70 : 1,183,458,806.55 = 329,240,643.30 : x
  2. Step 2: Convert to fraction form
    788,972,537.70/1,183,458,806.55 = 329,240,643.30/x
  3. Step 3: Cross multiply
    788,972,537.70x = 1,183,458,806.55 × 329,240,643.30
  4. Step 4: Simplify right side
    788,972,537.70x = 389,642,738,787,572,224
  5. Step 5: Solve for x
    x = 389,642,738,787,572,224/788,972,537.70
  6. Step 6: Final answer
    x = 493,860,964.95

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Double scale
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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.