Home / 1,248,075,028.76-1,722,397,680.22-691,158,075.88

Finding the Fourth Proportional to 1,248,075,028.76, 1,722,397,680.22 and 691,158,075.88

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Solution

The fourth proportional to 1,248,075,028.76, 1,722,397,680.22 and 691,158,075.88 is: 953,828,126.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,075,028.76 : 1,722,397,680.22 = 691,158,075.88 : x
  2. Step 2: Convert to fraction form
    1,248,075,028.76/1,722,397,680.22 = 691,158,075.88/x
  3. Step 3: Cross multiply
    1,248,075,028.76x = 1,722,397,680.22 × 691,158,075.88
  4. Step 4: Simplify right side
    1,248,075,028.76x = 1,190,449,066,561,030,656
  5. Step 5: Solve for x
    x = 1,190,449,066,561,030,656/1,248,075,028.76
  6. Step 6: Final answer
    x = 953,828,126.62

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Half scale
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Double scale
Find fourth proportional to 1,248,075,029.76, 1,722,397,681.60 and 691,158,076.88
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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.