Home / 814,663,072.45-1,222,783,798.56-770,420,609.20

Finding the Fourth Proportional to 814,663,072.45, 1,222,783,798.56 and 770,420,609.20

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Solution

The fourth proportional to 814,663,072.45, 1,222,783,798.56 and 770,420,609.20 is: 1,156,377,244.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,663,072.45 : 1,222,783,798.56 = 770,420,609.20 : x
  2. Step 2: Convert to fraction form
    814,663,072.45/1,222,783,798.56 = 770,420,609.20/x
  3. Step 3: Cross multiply
    814,663,072.45x = 1,222,783,798.56 × 770,420,609.20
  4. Step 4: Simplify right side
    814,663,072.45x = 942,057,839,006,485,248
  5. Step 5: Solve for x
    x = 942,057,839,006,485,248/814,663,072.45
  6. Step 6: Final answer
    x = 1,156,377,244.61

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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.