Finding the Fourth Proportional to 1,229,678,977,861.70, 1,697,010,332,037.10 and 680,970,282,794.70
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Solution
The fourth proportional to 1,229,678,977,861.70, 1,697,010,332,037.10 and 680,970,282,794.70 is: 939,768,530,256.85
Step by Step Solution
- Step 1: Write the proportion equation
1,229,678,977,861.70 : 1,697,010,332,037.10 = 680,970,282,794.70 : x - Step 2: Convert to fraction form
1,229,678,977,861.70/1,697,010,332,037.10 = 680,970,282,794.70/x - Step 3: Cross multiply
1,229,678,977,861.70x = 1,697,010,332,037.10 × 680,970,282,794.70 - Step 4: Simplify right side
1,229,678,977,861.70x = 1,155,613,605,712,831,704,989,696 - Step 5: Solve for x
x = 1,155,613,605,712,831,704,989,696/1,229,678,977,861.70 - Step 6: Final answer
x = 939,768,530,256.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.