Home / 1,274,630,512.20-1,911,945,768.30-756,794,401.80

Finding the Fourth Proportional to 1,274,630,512.20, 1,911,945,768.30 and 756,794,401.80

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Solution

The fourth proportional to 1,274,630,512.20, 1,911,945,768.30 and 756,794,401.80 is: 1,135,191,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,630,512.20 : 1,911,945,768.30 = 756,794,401.80 : x
  2. Step 2: Convert to fraction form
    1,274,630,512.20/1,911,945,768.30 = 756,794,401.80/x
  3. Step 3: Cross multiply
    1,274,630,512.20x = 1,911,945,768.30 × 756,794,401.80
  4. Step 4: Simplify right side
    1,274,630,512.20x = 1,446,949,853,994,639,872
  5. Step 5: Solve for x
    x = 1,446,949,853,994,639,872/1,274,630,512.20
  6. Step 6: Final answer
    x = 1,135,191,602.70

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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.