Home / 20,136,939.60-30,221,155.80-9,355,576.35

Finding the Fourth Proportional to 20,136,939.60, 30,221,155.80 and 9,355,576.35

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Solution

The fourth proportional to 20,136,939.60, 30,221,155.80 and 9,355,576.35 is: 14,040,680.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136,939.60 : 30,221,155.80 = 9,355,576.35 : x
  2. Step 2: Convert to fraction form
    20,136,939.60/30,221,155.80 = 9,355,576.35/x
  3. Step 3: Cross multiply
    20,136,939.60x = 30,221,155.80 × 9,355,576.35
  4. Step 4: Simplify right side
    20,136,939.60x = 282,736,330,472,145.31
  5. Step 5: Solve for x
    x = 282,736,330,472,145.31/20,136,939.60
  6. Step 6: Final answer
    x = 14,040,680.27

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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.