Home / 1,340,250,389.20-2,010,564,540.60-420,030,773.20

Finding the Fourth Proportional to 1,340,250,389.20, 2,010,564,540.60 and 420,030,773.20

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Solution

The fourth proportional to 1,340,250,389.20, 2,010,564,540.60 and 420,030,773.20 is: 630,105,378.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,250,389.20 : 2,010,564,540.60 = 420,030,773.20 : x
  2. Step 2: Convert to fraction form
    1,340,250,389.20/2,010,564,540.60 = 420,030,773.20/x
  3. Step 3: Cross multiply
    1,340,250,389.20x = 2,010,564,540.60 × 420,030,773.20
  4. Step 4: Simplify right side
    1,340,250,389.20x = 844,498,978,556,720,768
  5. Step 5: Solve for x
    x = 844,498,978,556,720,768/1,340,250,389.20
  6. Step 6: Final answer
    x = 630,105,378.34

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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.