Finding the Fourth Proportional to 7,085,128.80, 10,611,946.80 and 5,825,416.80
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Solution
The fourth proportional to 7,085,128.80, 10,611,946.80 and 5,825,416.80 is: 8,725,178.46
Step by Step Solution
- Step 1: Write the proportion equation
7,085,128.80 : 10,611,946.80 = 5,825,416.80 : x - Step 2: Convert to fraction form
7,085,128.80/10,611,946.80 = 5,825,416.80/x - Step 3: Cross multiply
7,085,128.80x = 10,611,946.80 × 5,825,416.80 - Step 4: Simplify right side
7,085,128.80x = 61,819,013,169,426.24 - Step 5: Solve for x
x = 61,819,013,169,426.24/7,085,128.80 - Step 6: Final answer
x = 8,725,178.46
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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.