Home / 1,279,518,763.60-1,919,278,145.40-1,085,808,519.10

Finding the Fourth Proportional to 1,279,518,763.60, 1,919,278,145.40 and 1,085,808,519.10

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Solution

The fourth proportional to 1,279,518,763.60, 1,919,278,145.40 and 1,085,808,519.10 is: 1,628,712,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,518,763.60 : 1,919,278,145.40 = 1,085,808,519.10 : x
  2. Step 2: Convert to fraction form
    1,279,518,763.60/1,919,278,145.40 = 1,085,808,519.10/x
  3. Step 3: Cross multiply
    1,279,518,763.60x = 1,919,278,145.40 × 1,085,808,519.10
  4. Step 4: Simplify right side
    1,279,518,763.60x = 2,083,968,560,797,768,448
  5. Step 5: Solve for x
    x = 2,083,968,560,797,768,448/1,279,518,763.60
  6. Step 6: Final answer
    x = 1,628,712,778.65

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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.