Home / 28,354,156.78-42,529,177.87-11,079,109.42

Finding the Fourth Proportional to 28,354,156.78, 42,529,177.87 and 11,079,109.42

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Solution

The fourth proportional to 28,354,156.78, 42,529,177.87 and 11,079,109.42 is: 16,617,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,354,156.78 : 42,529,177.87 = 11,079,109.42 : x
  2. Step 2: Convert to fraction form
    28,354,156.78/42,529,177.87 = 11,079,109.42/x
  3. Step 3: Cross multiply
    28,354,156.78x = 42,529,177.87 × 11,079,109.42
  4. Step 4: Simplify right side
    28,354,156.78x = 471,185,415,164,372.50
  5. Step 5: Solve for x
    x = 471,185,415,164,372.50/28,354,156.78
  6. Step 6: Final answer
    x = 16,617,860.26

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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.