Home / 28,213,466.88-42,320,725.40-8,019,233.76

Finding the Fourth Proportional to 28,213,466.88, 42,320,725.40 and 8,019,233.76

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Solution

The fourth proportional to 28,213,466.88, 42,320,725.40 and 8,019,233.76 is: 12,028,999.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213,466.88 : 42,320,725.40 = 8,019,233.76 : x
  2. Step 2: Convert to fraction form
    28,213,466.88/42,320,725.40 = 8,019,233.76/x
  3. Step 3: Cross multiply
    28,213,466.88x = 42,320,725.40 × 8,019,233.76
  4. Step 4: Simplify right side
    28,213,466.88x = 339,379,789,875,369.50
  5. Step 5: Solve for x
    x = 339,379,789,875,369.50/28,213,466.88
  6. Step 6: Final answer
    x = 12,028,999.89

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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.