Home / 30,482,709.71-42,101,052.09-20,075,249.75

Finding the Fourth Proportional to 30,482,709.71, 42,101,052.09 and 20,075,249.75

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Solution

The fourth proportional to 30,482,709.71, 42,101,052.09 and 20,075,249.75 is: 27,726,837.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,482,709.71 : 42,101,052.09 = 20,075,249.75 : x
  2. Step 2: Convert to fraction form
    30,482,709.71/42,101,052.09 = 20,075,249.75/x
  3. Step 3: Cross multiply
    30,482,709.71x = 42,101,052.09 × 20,075,249.75
  4. Step 4: Simplify right side
    30,482,709.71x = 845,189,135,444,509.50
  5. Step 5: Solve for x
    x = 845,189,135,444,509.50/30,482,709.71
  6. Step 6: Final answer
    x = 27,726,837.39

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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.