Finding the Fourth Proportional to 13,344,454.12, 18,415,379.30 and 7,232,876.52
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Solution
The fourth proportional to 13,344,454.12, 18,415,379.30 and 7,232,876.52 is: 9,981,387.28
Step by Step Solution
- Step 1: Write the proportion equation
13,344,454.12 : 18,415,379.30 = 7,232,876.52 : x - Step 2: Convert to fraction form
13,344,454.12/18,415,379.30 = 7,232,876.52/x - Step 3: Cross multiply
13,344,454.12x = 18,415,379.30 × 7,232,876.52 - Step 4: Simplify right side
13,344,454.12x = 133,196,164,545,864.03 - Step 5: Solve for x
x = 133,196,164,545,864.03/13,344,454.12 - Step 6: Final answer
x = 9,981,387.28
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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.