Home / 1,340,322,101.40-2,010,546,137.70-420,228,456.60

Finding the Fourth Proportional to 1,340,322,101.40, 2,010,546,137.70 and 420,228,456.60

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Solution

The fourth proportional to 1,340,322,101.40, 2,010,546,137.70 and 420,228,456.60 is: 630,362,432.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,322,101.40 : 2,010,546,137.70 = 420,228,456.60 : x
  2. Step 2: Convert to fraction form
    1,340,322,101.40/2,010,546,137.70 = 420,228,456.60/x
  3. Step 3: Cross multiply
    1,340,322,101.40x = 2,010,546,137.70 × 420,228,456.60
  4. Step 4: Simplify right side
    1,340,322,101.40x = 844,888,700,368,762,112
  5. Step 5: Solve for x
    x = 844,888,700,368,762,112/1,340,322,101.40
  6. Step 6: Final answer
    x = 630,362,432.65

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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.