Finding the Fourth Proportional to 144,540,852.29, 199,466,631.11 and 78,461,396.31
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Solution
The fourth proportional to 144,540,852.29, 199,466,631.11 and 78,461,396.31 is: 108,276,865.31
Step by Step Solution
- Step 1: Write the proportion equation
144,540,852.29 : 199,466,631.11 = 78,461,396.31 : x - Step 2: Convert to fraction form
144,540,852.29/199,466,631.11 = 78,461,396.31/x - Step 3: Cross multiply
144,540,852.29x = 199,466,631.11 × 78,461,396.31 - Step 4: Simplify right side
144,540,852.29x = 15,650,430,394,338,440 - Step 5: Solve for x
x = 15,650,430,394,338,440/144,540,852.29 - Step 6: Final answer
x = 108,276,865.31
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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.