Home / 1,259,713,095.80-1,889,569,643.70-339,682,436.60

Finding the Fourth Proportional to 1,259,713,095.80, 1,889,569,643.70 and 339,682,436.60

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Solution

The fourth proportional to 1,259,713,095.80, 1,889,569,643.70 and 339,682,436.60 is: 509,523,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,713,095.80 : 1,889,569,643.70 = 339,682,436.60 : x
  2. Step 2: Convert to fraction form
    1,259,713,095.80/1,889,569,643.70 = 339,682,436.60/x
  3. Step 3: Cross multiply
    1,259,713,095.80x = 1,889,569,643.70 × 339,682,436.60
  4. Step 4: Simplify right side
    1,259,713,095.80x = 641,853,620,697,409,920
  5. Step 5: Solve for x
    x = 641,853,620,697,409,920/1,259,713,095.80
  6. Step 6: Final answer
    x = 509,523,654.90

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Double scale
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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.