Home / 20,505,875.70-30,758,813.55-20,187,011.10

Finding the Fourth Proportional to 20,505,875.70, 30,758,813.55 and 20,187,011.10

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Solution

The fourth proportional to 20,505,875.70, 30,758,813.55 and 20,187,011.10 is: 30,280,516.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505,875.70 : 30,758,813.55 = 20,187,011.10 : x
  2. Step 2: Convert to fraction form
    20,505,875.70/30,758,813.55 = 20,187,011.10/x
  3. Step 3: Cross multiply
    20,505,875.70x = 30,758,813.55 × 20,187,011.10
  4. Step 4: Simplify right side
    20,505,875.70x = 620,928,510,556,680.50
  5. Step 5: Solve for x
    x = 620,928,510,556,680.50/20,505,875.70
  6. Step 6: Final answer
    x = 30,280,516.65

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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.