Home / 1,311,563,572.80-1,968,101,186.40-494,262,427.20

Finding the Fourth Proportional to 1,311,563,572.80, 1,968,101,186.40 and 494,262,427.20

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Solution

The fourth proportional to 1,311,563,572.80, 1,968,101,186.40 and 494,262,427.20 is: 741,678,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,563,572.80 : 1,968,101,186.40 = 494,262,427.20 : x
  2. Step 2: Convert to fraction form
    1,311,563,572.80/1,968,101,186.40 = 494,262,427.20/x
  3. Step 3: Cross multiply
    1,311,563,572.80x = 1,968,101,186.40 × 494,262,427.20
  4. Step 4: Simplify right side
    1,311,563,572.80x = 972,758,469,365,263,616
  5. Step 5: Solve for x
    x = 972,758,469,365,263,616/1,311,563,572.80
  6. Step 6: Final answer
    x = 741,678,474.10

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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.