Home / 1,691,128,278.80-2,333,752,247.04-938,555,075.60

Finding the Fourth Proportional to 1,691,128,278.80, 2,333,752,247.04 and 938,555,075.60

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Solution

The fourth proportional to 1,691,128,278.80, 2,333,752,247.04 and 938,555,075.60 is: 1,295,203,352.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,128,278.80 : 2,333,752,247.04 = 938,555,075.60 : x
  2. Step 2: Convert to fraction form
    1,691,128,278.80/2,333,752,247.04 = 938,555,075.60/x
  3. Step 3: Cross multiply
    1,691,128,278.80x = 2,333,752,247.04 × 938,555,075.60
  4. Step 4: Simplify right side
    1,691,128,278.80x = 2,190,355,016,652,297,216
  5. Step 5: Solve for x
    x = 2,190,355,016,652,297,216/1,691,128,278.80
  6. Step 6: Final answer
    x = 1,295,203,352.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.