Home / 1,940,225,454.80-2,910,363,065.40-647,760,942.80

Finding the Fourth Proportional to 1,940,225,454.80, 2,910,363,065.40 and 647,760,942.80

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Solution

The fourth proportional to 1,940,225,454.80, 2,910,363,065.40 and 647,760,942.80 is: 971,649,721.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940,225,454.80 : 2,910,363,065.40 = 647,760,942.80 : x
  2. Step 2: Convert to fraction form
    1,940,225,454.80/2,910,363,065.40 = 647,760,942.80/x
  3. Step 3: Cross multiply
    1,940,225,454.80x = 2,910,363,065.40 × 647,760,942.80
  4. Step 4: Simplify right side
    1,940,225,454.80x = 1,885,219,523,133,801,984
  5. Step 5: Solve for x
    x = 1,885,219,523,133,801,984/1,940,225,454.80
  6. Step 6: Final answer
    x = 971,649,721.67

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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.