Home / 28,003,504.80-42,005,257.20-16,638,103.20

Finding the Fourth Proportional to 28,003,504.80, 42,005,257.20 and 16,638,103.20

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Solution

The fourth proportional to 28,003,504.80, 42,005,257.20 and 16,638,103.20 is: 24,957,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003,504.80 : 42,005,257.20 = 16,638,103.20 : x
  2. Step 2: Convert to fraction form
    28,003,504.80/42,005,257.20 = 16,638,103.20/x
  3. Step 3: Cross multiply
    28,003,504.80x = 42,005,257.20 × 16,638,103.20
  4. Step 4: Simplify right side
    28,003,504.80x = 698,887,804,236,143
  5. Step 5: Solve for x
    x = 698,887,804,236,143/28,003,504.80
  6. Step 6: Final answer
    x = 24,957,154.80

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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.