Home / 20,140,683.30-30,237,367.80-11,958,263.40

Finding the Fourth Proportional to 20,140,683.30, 30,237,367.80 and 11,958,263.40

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Solution

The fourth proportional to 20,140,683.30, 30,237,367.80 and 11,958,263.40 is: 17,953,035.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140,683.30 : 30,237,367.80 = 11,958,263.40 : x
  2. Step 2: Convert to fraction form
    20,140,683.30/30,237,367.80 = 11,958,263.40/x
  3. Step 3: Cross multiply
    20,140,683.30x = 30,237,367.80 × 11,958,263.40
  4. Step 4: Simplify right side
    20,140,683.30x = 361,586,408,675,078.56
  5. Step 5: Solve for x
    x = 361,586,408,675,078.56/20,140,683.30
  6. Step 6: Final answer
    x = 17,953,035.82

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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.