Finding the Fourth Proportional to 352,829,881.19, 486,905,639.71 and 196,193,625.15
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Solution
The fourth proportional to 352,829,881.19, 486,905,639.71 and 196,193,625.15 is: 270,747,427.17
Step by Step Solution
- Step 1: Write the proportion equation
352,829,881.19 : 486,905,639.71 = 196,193,625.15 : x - Step 2: Convert to fraction form
352,829,881.19/486,905,639.71 = 196,193,625.15/x - Step 3: Cross multiply
352,829,881.19x = 486,905,639.71 × 196,193,625.15 - Step 4: Simplify right side
352,829,881.19x = 95,527,782,560,684,688 - Step 5: Solve for x
x = 95,527,782,560,684,688/352,829,881.19 - Step 6: Final answer
x = 270,747,427.17
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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.