Home / 28,003,745.80-42,005,618.70-16,638,344.20

Finding the Fourth Proportional to 28,003,745.80, 42,005,618.70 and 16,638,344.20

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Solution

The fourth proportional to 28,003,745.80, 42,005,618.70 and 16,638,344.20 is: 24,957,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003,745.80 : 42,005,618.70 = 16,638,344.20 : x
  2. Step 2: Convert to fraction form
    28,003,745.80/42,005,618.70 = 16,638,344.20/x
  3. Step 3: Cross multiply
    28,003,745.80x = 42,005,618.70 × 16,638,344.20
  4. Step 4: Simplify right side
    28,003,745.80x = 698,903,942,264,556.50
  5. Step 5: Solve for x
    x = 698,903,942,264,556.50/28,003,745.80
  6. Step 6: Final answer
    x = 24,957,516.30

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1.5x scale

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.