Home / 13,742,747.40-20,614,121.10-12,481,998.60

Finding the Fourth Proportional to 13,742,747.40, 20,614,121.10 and 12,481,998.60

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Solution

The fourth proportional to 13,742,747.40, 20,614,121.10 and 12,481,998.60 is: 18,722,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742,747.40 : 20,614,121.10 = 12,481,998.60 : x
  2. Step 2: Convert to fraction form
    13,742,747.40/20,614,121.10 = 12,481,998.60/x
  3. Step 3: Cross multiply
    13,742,747.40x = 20,614,121.10 × 12,481,998.60
  4. Step 4: Simplify right side
    13,742,747.40x = 257,305,430,710,430.47
  5. Step 5: Solve for x
    x = 257,305,430,710,430.47/13,742,747.40
  6. Step 6: Final answer
    x = 18,722,997.90

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1.5x scale

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.