Home / 86,290,450.38-129,436,159.48-28,782,563.67

Finding the Fourth Proportional to 86,290,450.38, 129,436,159.48 and 28,782,563.67

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Solution

The fourth proportional to 86,290,450.38, 129,436,159.48 and 28,782,563.67 is: 43,174,006.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,290,450.38 : 129,436,159.48 = 28,782,563.67 : x
  2. Step 2: Convert to fraction form
    86,290,450.38/129,436,159.48 = 28,782,563.67/x
  3. Step 3: Cross multiply
    86,290,450.38x = 129,436,159.48 × 28,782,563.67
  4. Step 4: Simplify right side
    86,290,450.38x = 3,725,504,501,361,418
  5. Step 5: Solve for x
    x = 3,725,504,501,361,418/86,290,450.38
  6. Step 6: Final answer
    x = 43,174,006.91

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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.