Home / 312,795,383.40-469,193,075.10-82,787,718.60

Finding the Fourth Proportional to 312,795,383.40, 469,193,075.10 and 82,787,718.60

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Solution

The fourth proportional to 312,795,383.40, 469,193,075.10 and 82,787,718.60 is: 124,181,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,795,383.40 : 469,193,075.10 = 82,787,718.60 : x
  2. Step 2: Convert to fraction form
    312,795,383.40/469,193,075.10 = 82,787,718.60/x
  3. Step 3: Cross multiply
    312,795,383.40x = 469,193,075.10 × 82,787,718.60
  4. Step 4: Simplify right side
    312,795,383.40x = 38,843,424,270,447,464
  5. Step 5: Solve for x
    x = 38,843,424,270,447,464/312,795,383.40
  6. Step 6: Final answer
    x = 124,181,577.90

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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.