Finding the Fourth Proportional to 138,220,708.80, 207,331,838.16 and 46,104,193.92
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Solution
The fourth proportional to 138,220,708.80, 207,331,838.16 and 46,104,193.92 is: 69,156,549.37
Step by Step Solution
- Step 1: Write the proportion equation
138,220,708.80 : 207,331,838.16 = 46,104,193.92 : x - Step 2: Convert to fraction form
138,220,708.80/207,331,838.16 = 46,104,193.92/x - Step 3: Cross multiply
138,220,708.80x = 207,331,838.16 × 46,104,193.92 - Step 4: Simplify right side
138,220,708.80x = 9,558,867,272,318,696 - Step 5: Solve for x
x = 9,558,867,272,318,696/138,220,708.80 - Step 6: Final answer
x = 69,156,549.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.