Home / 20,111,280.70-30,166,921.05-7,332,202.30

Finding the Fourth Proportional to 20,111,280.70, 30,166,921.05 and 7,332,202.30

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Solution

The fourth proportional to 20,111,280.70, 30,166,921.05 and 7,332,202.30 is: 10,998,303.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,280.70 : 30,166,921.05 = 7,332,202.30 : x
  2. Step 2: Convert to fraction form
    20,111,280.70/30,166,921.05 = 7,332,202.30/x
  3. Step 3: Cross multiply
    20,111,280.70x = 30,166,921.05 × 7,332,202.30
  4. Step 4: Simplify right side
    20,111,280.70x = 221,189,967,906,728.41
  5. Step 5: Solve for x
    x = 221,189,967,906,728.41/20,111,280.70
  6. Step 6: Final answer
    x = 10,998,303.45

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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.