Finding the Fourth Proportional to 149,095,696.50, 205,749,604.71 and 87,226,516.26
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Solution
The fourth proportional to 149,095,696.50, 205,749,604.71 and 87,226,516.26 is: 120,371,155.32
Step by Step Solution
- Step 1: Write the proportion equation
149,095,696.50 : 205,749,604.71 = 87,226,516.26 : x - Step 2: Convert to fraction form
149,095,696.50/205,749,604.71 = 87,226,516.26/x - Step 3: Cross multiply
149,095,696.50x = 205,749,604.71 × 87,226,516.26 - Step 4: Simplify right side
149,095,696.50x = 17,946,821,240,725,390 - Step 5: Solve for x
x = 17,946,821,240,725,390/149,095,696.50 - Step 6: Final answer
x = 120,371,155.32
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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.