Home / 1,159,574,791.60-1,739,362,187.40-393,669,895.60

Finding the Fourth Proportional to 1,159,574,791.60, 1,739,362,187.40 and 393,669,895.60

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Solution

The fourth proportional to 1,159,574,791.60, 1,739,362,187.40 and 393,669,895.60 is: 590,504,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,574,791.60 : 1,739,362,187.40 = 393,669,895.60 : x
  2. Step 2: Convert to fraction form
    1,159,574,791.60/1,739,362,187.40 = 393,669,895.60/x
  3. Step 3: Cross multiply
    1,159,574,791.60x = 1,739,362,187.40 × 393,669,895.60
  4. Step 4: Simplify right side
    1,159,574,791.60x = 684,734,530,724,345,728
  5. Step 5: Solve for x
    x = 684,734,530,724,345,728/1,159,574,791.60
  6. Step 6: Final answer
    x = 590,504,843.40

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Half scale
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Double scale
Find fourth proportional to 1,159,574,792.60, 1,739,362,188.90 and 393,669,896.60
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.