Home / 28,072,372.80-42,108,559.20-16,128,436.80

Finding the Fourth Proportional to 28,072,372.80, 42,108,559.20 and 16,128,436.80

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Solution

The fourth proportional to 28,072,372.80, 42,108,559.20 and 16,128,436.80 is: 24,192,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,372.80 : 42,108,559.20 = 16,128,436.80 : x
  2. Step 2: Convert to fraction form
    28,072,372.80/42,108,559.20 = 16,128,436.80/x
  3. Step 3: Cross multiply
    28,072,372.80x = 42,108,559.20 × 16,128,436.80
  4. Step 4: Simplify right side
    28,072,372.80x = 679,145,235,796,258.62
  5. Step 5: Solve for x
    x = 679,145,235,796,258.62/28,072,372.80
  6. Step 6: Final answer
    x = 24,192,655.20

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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.