Finding the Fourth Proportional to 1,679,936,658.42, 2,317,966,491.33 and 965,334,135.05
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Solution
The fourth proportional to 1,679,936,658.42, 2,317,966,491.33 and 965,334,135.05 is: 1,331,962,230.10
Step by Step Solution
- Step 1: Write the proportion equation
1,679,936,658.42 : 2,317,966,491.33 = 965,334,135.05 : x - Step 2: Convert to fraction form
1,679,936,658.42/2,317,966,491.33 = 965,334,135.05/x - Step 3: Cross multiply
1,679,936,658.42x = 2,317,966,491.33 × 965,334,135.05 - Step 4: Simplify right side
1,679,936,658.42x = 2,237,612,177,971,338,752 - Step 5: Solve for x
x = 2,237,612,177,971,338,752/1,679,936,658.42 - Step 6: Final answer
x = 1,331,962,230.10
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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.