Home / 28,315,966,323,375-39,075,617,665,055-15,815,878,785,978

Finding the Fourth Proportional to 28,315,966,323,375, 39,075,617,665,055 and 15,815,878,785,978

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Solution

The fourth proportional to 28,315,966,323,375, 39,075,617,665,055 and 15,815,878,785,978 is: 21,825,680,445,436.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,315,966,323,375 : 39,075,617,665,055 = 15,815,878,785,978 : x
  2. Step 2: Convert to fraction form
    28,315,966,323,375/39,075,617,665,055 = 15,815,878,785,978/x
  3. Step 3: Cross multiply
    28,315,966,323,375x = 39,075,617,665,055 × 15,815,878,785,978
  4. Step 4: Simplify right side
    28,315,966,323,375x = 618,015,232,477,730,593,568,718,848
  5. Step 5: Solve for x
    x = 618,015,232,477,730,593,568,718,848/28,315,966,323,375
  6. Step 6: Final answer
    x = 21,825,680,445,436.73

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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.