Home / 28,078,183.56-42,090,369.30-11,881,854.84

Finding the Fourth Proportional to 28,078,183.56, 42,090,369.30 and 11,881,854.84

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Solution

The fourth proportional to 28,078,183.56, 42,090,369.30 and 11,881,854.84 is: 17,811,396.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078,183.56 : 42,090,369.30 = 11,881,854.84 : x
  2. Step 2: Convert to fraction form
    28,078,183.56/42,090,369.30 = 11,881,854.84/x
  3. Step 3: Cross multiply
    28,078,183.56x = 42,090,369.30 × 11,881,854.84
  4. Step 4: Simplify right side
    28,078,183.56x = 500,111,658,184,592.38
  5. Step 5: Solve for x
    x = 500,111,658,184,592.38/28,078,183.56
  6. Step 6: Final answer
    x = 17,811,396.42

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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.