Finding the Fourth Proportional to 13,363,560.42, 18,441,725.18 and 7,251,988.92
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Solution
The fourth proportional to 13,363,560.42, 18,441,725.18 and 7,251,988.92 is: 10,007,751.11
Step by Step Solution
- Step 1: Write the proportion equation
13,363,560.42 : 18,441,725.18 = 7,251,988.92 : x - Step 2: Convert to fraction form
13,363,560.42/18,441,725.18 = 7,251,988.92/x - Step 3: Cross multiply
13,363,560.42x = 18,441,725.18 × 7,251,988.92 - Step 4: Simplify right side
13,363,560.42x = 133,739,186,671,045 - Step 5: Solve for x
x = 133,739,186,671,045/13,363,560.42 - Step 6: Final answer
x = 10,007,751.11
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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.