Home / 18,689,075.20-27,977,625.60-11,112,140.80

Finding the Fourth Proportional to 18,689,075.20, 27,977,625.60 and 11,112,140.80

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Solution

The fourth proportional to 18,689,075.20, 27,977,625.60 and 11,112,140.80 is: 16,634,922.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,075.20 : 27,977,625.60 = 11,112,140.80 : x
  2. Step 2: Convert to fraction form
    18,689,075.20/27,977,625.60 = 11,112,140.80/x
  3. Step 3: Cross multiply
    18,689,075.20x = 27,977,625.60 × 11,112,140.80
  4. Step 4: Simplify right side
    18,689,075.20x = 310,891,314,916,884.50
  5. Step 5: Solve for x
    x = 310,891,314,916,884.50/18,689,075.20
  6. Step 6: Final answer
    x = 16,634,922.36

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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.