Finding the Fourth Proportional to 1,940,391,945,631.20, 2,910,587,918,446.80 and 683,698,775,455.20
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Solution
The fourth proportional to 1,940,391,945,631.20, 2,910,587,918,446.80 and 683,698,775,455.20 is: 1,025,548,163,182.80
Step by Step Solution
- Step 1: Write the proportion equation
1,940,391,945,631.20 : 2,910,587,918,446.80 = 683,698,775,455.20 : x - Step 2: Convert to fraction form
1,940,391,945,631.20/2,910,587,918,446.80 = 683,698,775,455.20/x - Step 3: Cross multiply
1,940,391,945,631.20x = 2,910,587,918,446.80 × 683,698,775,455.20 - Step 4: Simplify right side
1,940,391,945,631.20x = 1,989,965,395,696,776,380,416,000 - Step 5: Solve for x
x = 1,989,965,395,696,776,380,416,000/1,940,391,945,631.20 - Step 6: Final answer
x = 1,025,548,163,182.80
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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.