Home / 1,279,518,759.60-1,919,278,139.40-1,085,808,515.10

Finding the Fourth Proportional to 1,279,518,759.60, 1,919,278,139.40 and 1,085,808,515.10

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Solution

The fourth proportional to 1,279,518,759.60, 1,919,278,139.40 and 1,085,808,515.10 is: 1,628,712,772.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,518,759.60 : 1,919,278,139.40 = 1,085,808,515.10 : x
  2. Step 2: Convert to fraction form
    1,279,518,759.60/1,919,278,139.40 = 1,085,808,515.10/x
  3. Step 3: Cross multiply
    1,279,518,759.60x = 1,919,278,139.40 × 1,085,808,515.10
  4. Step 4: Simplify right side
    1,279,518,759.60x = 2,083,968,546,605,804,800
  5. Step 5: Solve for x
    x = 2,083,968,546,605,804,800/1,279,518,759.60
  6. Step 6: Final answer
    x = 1,628,712,772.65

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Double scale
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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.