Home / 20,108,217.40-30,170,199.30-7,330,013.80

Finding the Fourth Proportional to 20,108,217.40, 30,170,199.30 and 7,330,013.80

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Solution

The fourth proportional to 20,108,217.40, 30,170,199.30 and 7,330,013.80 is: 10,997,890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108,217.40 : 30,170,199.30 = 7,330,013.80 : x
  2. Step 2: Convert to fraction form
    20,108,217.40/30,170,199.30 = 7,330,013.80/x
  3. Step 3: Cross multiply
    20,108,217.40x = 30,170,199.30 × 7,330,013.80
  4. Step 4: Simplify right side
    20,108,217.40x = 221,147,977,217,750.34
  5. Step 5: Solve for x
    x = 221,147,977,217,750.34/20,108,217.40
  6. Step 6: Final answer
    x = 10,997,890.70

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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.