Finding the Fourth Proportional to 7,210,190.88, 9,949,678.80 and 3,946,372.80
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Solution
The fourth proportional to 7,210,190.88, 9,949,678.80 and 3,946,372.80 is: 5,445,783.95
Step by Step Solution
- Step 1: Write the proportion equation
7,210,190.88 : 9,949,678.80 = 3,946,372.80 : x - Step 2: Convert to fraction form
7,210,190.88/9,949,678.80 = 3,946,372.80/x - Step 3: Cross multiply
7,210,190.88x = 9,949,678.80 × 3,946,372.80 - Step 4: Simplify right side
7,210,190.88x = 39,265,141,785,056.64 - Step 5: Solve for x
x = 39,265,141,785,056.64/7,210,190.88 - Step 6: Final answer
x = 5,445,783.95
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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.