Home / 2,220,945,455.80-3,311,562,360.12-2,159,926,728.76

Finding the Fourth Proportional to 2,220,945,455.80, 3,311,562,360.12 and 2,159,926,728.76

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Solution

The fourth proportional to 2,220,945,455.80, 3,311,562,360.12 and 2,159,926,728.76 is: 3,220,579,792.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220,945,455.80 : 3,311,562,360.12 = 2,159,926,728.76 : x
  2. Step 2: Convert to fraction form
    2,220,945,455.80/3,311,562,360.12 = 2,159,926,728.76/x
  3. Step 3: Cross multiply
    2,220,945,455.80x = 3,311,562,360.12 × 2,159,926,728.76
  4. Step 4: Simplify right side
    2,220,945,455.80x = 7,152,732,055,578,737,664
  5. Step 5: Solve for x
    x = 7,152,732,055,578,737,664/2,220,945,455.80
  6. Step 6: Final answer
    x = 3,220,579,792.67

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.