Finding the Fourth Proportional to 7,334,555.12, 10,128,578.36 and 4,725,639.08
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Solution
The fourth proportional to 7,334,555.12, 10,128,578.36 and 4,725,639.08 is: 6,525,822.62
Step by Step Solution
- Step 1: Write the proportion equation
7,334,555.12 : 10,128,578.36 = 4,725,639.08 : x - Step 2: Convert to fraction form
7,334,555.12/10,128,578.36 = 4,725,639.08/x - Step 3: Cross multiply
7,334,555.12x = 10,128,578.36 × 4,725,639.08 - Step 4: Simplify right side
7,334,555.12x = 47,864,005,722,858.30 - Step 5: Solve for x
x = 47,864,005,722,858.30/7,334,555.12 - Step 6: Final answer
x = 6,525,822.62
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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.