Home / 13,867,120.47-20,783,644.47-7,789,075.68

Finding the Fourth Proportional to 13,867,120.47, 20,783,644.47 and 7,789,075.68

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Solution

The fourth proportional to 13,867,120.47, 20,783,644.47 and 7,789,075.68 is: 11,674,044.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867,120.47 : 20,783,644.47 = 7,789,075.68 : x
  2. Step 2: Convert to fraction form
    13,867,120.47/20,783,644.47 = 7,789,075.68/x
  3. Step 3: Cross multiply
    13,867,120.47x = 20,783,644.47 × 7,789,075.68
  4. Step 4: Simplify right side
    13,867,120.47x = 161,885,379,683,043.47
  5. Step 5: Solve for x
    x = 161,885,379,683,043.47/13,867,120.47
  6. Step 6: Final answer
    x = 11,674,044.37

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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.