Home / 69,203,931-103,812,096.68-20,019,011.80

Finding the Fourth Proportional to 69,203,931, 103,812,096.68 and 20,019,011.80

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Solution

The fourth proportional to 69,203,931, 103,812,096.68 and 20,019,011.80 is: 30,030,311.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,203,931 : 103,812,096.68 = 20,019,011.80 : x
  2. Step 2: Convert to fraction form
    69,203,931/103,812,096.68 = 20,019,011.80/x
  3. Step 3: Cross multiply
    69,203,931x = 103,812,096.68 × 20,019,011.80
  4. Step 4: Simplify right side
    69,203,931x = 2,078,215,588,419,661
  5. Step 5: Solve for x
    x = 2,078,215,588,419,661/69,203,931
  6. Step 6: Final answer
    x = 30,030,311.26

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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.