Home / 28,315,966,297,109-39,075,617,628,721-15,815,878,759,632

Finding the Fourth Proportional to 28,315,966,297,109, 39,075,617,628,721 and 15,815,878,759,632

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Solution

The fourth proportional to 28,315,966,297,109, 39,075,617,628,721 and 15,815,878,759,632 is: 21,825,680,409,030.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,315,966,297,109 : 39,075,617,628,721 = 15,815,878,759,632 : x
  2. Step 2: Convert to fraction form
    28,315,966,297,109/39,075,617,628,721 = 15,815,878,759,632/x
  3. Step 3: Cross multiply
    28,315,966,297,109x = 39,075,617,628,721 × 15,815,878,759,632
  4. Step 4: Simplify right side
    28,315,966,297,109x = 618,015,230,873,590,201,485,099,008
  5. Step 5: Solve for x
    x = 618,015,230,873,590,201,485,099,008/28,315,966,297,109
  6. Step 6: Final answer
    x = 21,825,680,409,030.87

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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.