Finding the Fourth Proportional to 12,415,875.12, 17,133,653.88 and 7,772,221.26
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Solution
The fourth proportional to 12,415,875.12, 17,133,653.88 and 7,772,221.26 is: 10,725,506.47
Step by Step Solution
- Step 1: Write the proportion equation
12,415,875.12 : 17,133,653.88 = 7,772,221.26 : x - Step 2: Convert to fraction form
12,415,875.12/17,133,653.88 = 7,772,221.26/x - Step 3: Cross multiply
12,415,875.12x = 17,133,653.88 × 7,772,221.26 - Step 4: Simplify right side
12,415,875.12x = 133,166,548,947,617.48 - Step 5: Solve for x
x = 133,166,548,947,617.48/12,415,875.12 - Step 6: Final answer
x = 10,725,506.47
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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.