Home / 30,482,775.36-42,101,142.48-20,075,315.28

Finding the Fourth Proportional to 30,482,775.36, 42,101,142.48 and 20,075,315.28

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Solution

The fourth proportional to 30,482,775.36, 42,101,142.48 and 20,075,315.28 is: 27,726,927.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,482,775.36 : 42,101,142.48 = 20,075,315.28 : x
  2. Step 2: Convert to fraction form
    30,482,775.36/42,101,142.48 = 20,075,315.28/x
  3. Step 3: Cross multiply
    30,482,775.36x = 42,101,142.48 × 20,075,315.28
  4. Step 4: Simplify right side
    30,482,775.36x = 845,193,708,934,201.12
  5. Step 5: Solve for x
    x = 845,193,708,934,201.12/30,482,775.36
  6. Step 6: Final answer
    x = 27,726,927.71

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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.