Home / 20,996,830.34-28,975,625.70-11,339,038.34

Finding the Fourth Proportional to 20,996,830.34, 28,975,625.70 and 11,339,038.34

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Solution

The fourth proportional to 20,996,830.34, 28,975,625.70 and 11,339,038.34 is: 15,647,872.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,830.34 : 28,975,625.70 = 11,339,038.34 : x
  2. Step 2: Convert to fraction form
    20,996,830.34/28,975,625.70 = 11,339,038.34/x
  3. Step 3: Cross multiply
    20,996,830.34x = 28,975,625.70 × 11,339,038.34
  4. Step 4: Simplify right side
    20,996,830.34x = 328,555,730,737,789.31
  5. Step 5: Solve for x
    x = 328,555,730,737,789.31/20,996,830.34
  6. Step 6: Final answer
    x = 15,647,872.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.