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Finding the Fourth Proportional to 1,019,969,401.80, 1,529,954,102.70 and 798,039,640.20

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Solution

The fourth proportional to 1,019,969,401.80, 1,529,954,102.70 and 798,039,640.20 is: 1,197,059,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,969,401.80 : 1,529,954,102.70 = 798,039,640.20 : x
  2. Step 2: Convert to fraction form
    1,019,969,401.80/1,529,954,102.70 = 798,039,640.20/x
  3. Step 3: Cross multiply
    1,019,969,401.80x = 1,529,954,102.70 × 798,039,640.20
  4. Step 4: Simplify right side
    1,019,969,401.80x = 1,220,964,021,641,221,888
  5. Step 5: Solve for x
    x = 1,220,964,021,641,221,888/1,019,969,401.80
  6. Step 6: Final answer
    x = 1,197,059,460.30

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Double scale
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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.