Home / 2,700,412.80-4,047,075.84-1,987,100.80

Finding the Fourth Proportional to 2,700,412.80, 4,047,075.84 and 1,987,100.80

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Solution

The fourth proportional to 2,700,412.80, 4,047,075.84 and 1,987,100.80 is: 2,978,043.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700,412.80 : 4,047,075.84 = 1,987,100.80 : x
  2. Step 2: Convert to fraction form
    2,700,412.80/4,047,075.84 = 1,987,100.80/x
  3. Step 3: Cross multiply
    2,700,412.80x = 4,047,075.84 × 1,987,100.80
  4. Step 4: Simplify right side
    2,700,412.80x = 8,041,947,639,324.67
  5. Step 5: Solve for x
    x = 8,041,947,639,324.67/2,700,412.80
  6. Step 6: Final answer
    x = 2,978,043.82

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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.