Finding the Fourth Proportional to 144,708,782.99, 199,675,640.57 and 85,969,938.47
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Solution
The fourth proportional to 144,708,782.99, 199,675,640.57 and 85,969,938.47 is: 118,625,159.98
Step by Step Solution
- Step 1: Write the proportion equation
144,708,782.99 : 199,675,640.57 = 85,969,938.47 : x - Step 2: Convert to fraction form
144,708,782.99/199,675,640.57 = 85,969,938.47/x - Step 3: Cross multiply
144,708,782.99x = 199,675,640.57 × 85,969,938.47 - Step 4: Simplify right side
144,708,782.99x = 17,166,102,532,332,508 - Step 5: Solve for x
x = 17,166,102,532,332,508/144,708,782.99 - Step 6: Final answer
x = 118,625,159.98
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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.