Home / 20,938,866.89-28,895,221.94-11,646,237.06

Finding the Fourth Proportional to 20,938,866.89, 28,895,221.94 and 11,646,237.06

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Solution

The fourth proportional to 20,938,866.89, 28,895,221.94 and 11,646,237.06 is: 16,071,576.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,938,866.89 : 28,895,221.94 = 11,646,237.06 : x
  2. Step 2: Convert to fraction form
    20,938,866.89/28,895,221.94 = 11,646,237.06/x
  3. Step 3: Cross multiply
    20,938,866.89x = 28,895,221.94 × 11,646,237.06
  4. Step 4: Simplify right side
    20,938,866.89x = 336,520,604,556,321.94
  5. Step 5: Solve for x
    x = 336,520,604,556,321.94/20,938,866.89
  6. Step 6: Final answer
    x = 16,071,576.67

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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.