Home / 20,738,021.70-31,107,032.55-16,455,000.90

Finding the Fourth Proportional to 20,738,021.70, 31,107,032.55 and 16,455,000.90

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Solution

The fourth proportional to 20,738,021.70, 31,107,032.55 and 16,455,000.90 is: 24,682,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738,021.70 : 31,107,032.55 = 16,455,000.90 : x
  2. Step 2: Convert to fraction form
    20,738,021.70/31,107,032.55 = 16,455,000.90/x
  3. Step 3: Cross multiply
    20,738,021.70x = 31,107,032.55 × 16,455,000.90
  4. Step 4: Simplify right side
    20,738,021.70x = 511,866,248,606,579.31
  5. Step 5: Solve for x
    x = 511,866,248,606,579.31/20,738,021.70
  6. Step 6: Final answer
    x = 24,682,501.35

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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.