Home / 1,159,888,906.85-1,739,833,360.28-393,984,010.85

Finding the Fourth Proportional to 1,159,888,906.85, 1,739,833,360.28 and 393,984,010.85

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Solution

The fourth proportional to 1,159,888,906.85, 1,739,833,360.28 and 393,984,010.85 is: 590,976,016.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,888,906.85 : 1,739,833,360.28 = 393,984,010.85 : x
  2. Step 2: Convert to fraction form
    1,159,888,906.85/1,739,833,360.28 = 393,984,010.85/x
  3. Step 3: Cross multiply
    1,159,888,906.85x = 1,739,833,360.28 × 393,984,010.85
  4. Step 4: Simplify right side
    1,159,888,906.85x = 685,466,525,493,747,456
  5. Step 5: Solve for x
    x = 685,466,525,493,747,456/1,159,888,906.85
  6. Step 6: Final answer
    x = 590,976,016.28

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Double scale
Find fourth proportional to 1,159,888,907.85, 1,739,833,361.78 and 393,984,011.85
Similar ratio
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1.5x scale

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.