Home / 30,482,711.71-42,101,054.85-20,075,251.75

Finding the Fourth Proportional to 30,482,711.71, 42,101,054.85 and 20,075,251.75

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Solution

The fourth proportional to 30,482,711.71, 42,101,054.85 and 20,075,251.75 is: 27,726,840.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,482,711.71 : 42,101,054.85 = 20,075,251.75 : x
  2. Step 2: Convert to fraction form
    30,482,711.71/42,101,054.85 = 20,075,251.75/x
  3. Step 3: Cross multiply
    30,482,711.71x = 42,101,054.85 × 20,075,251.75
  4. Step 4: Simplify right side
    30,482,711.71x = 845,189,275,054,308.50
  5. Step 5: Solve for x
    x = 845,189,275,054,308.50/30,482,711.71
  6. Step 6: Final answer
    x = 27,726,840.15

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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.