Home / 28,392,716.80-42,589,075.20-15,608,281.60

Finding the Fourth Proportional to 28,392,716.80, 42,589,075.20 and 15,608,281.60

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Solution

The fourth proportional to 28,392,716.80, 42,589,075.20 and 15,608,281.60 is: 23,412,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392,716.80 : 42,589,075.20 = 15,608,281.60 : x
  2. Step 2: Convert to fraction form
    28,392,716.80/42,589,075.20 = 15,608,281.60/x
  3. Step 3: Cross multiply
    28,392,716.80x = 42,589,075.20 × 15,608,281.60
  4. Step 4: Simplify right side
    28,392,716.80x = 664,742,278,805,176.38
  5. Step 5: Solve for x
    x = 664,742,278,805,176.38/28,392,716.80
  6. Step 6: Final answer
    x = 23,412,422.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.