Finding the Fourth Proportional to 11,121,508.80, 15,348,975.12 and 6,773,143.68
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Solution
The fourth proportional to 11,121,508.80, 15,348,975.12 and 6,773,143.68 is: 9,347,725.72
Step by Step Solution
- Step 1: Write the proportion equation
11,121,508.80 : 15,348,975.12 = 6,773,143.68 : x - Step 2: Convert to fraction form
11,121,508.80/15,348,975.12 = 6,773,143.68/x - Step 3: Cross multiply
11,121,508.80x = 15,348,975.12 × 6,773,143.68 - Step 4: Simplify right side
11,121,508.80x = 103,960,813,828,505.23 - Step 5: Solve for x
x = 103,960,813,828,505.23/11,121,508.80 - Step 6: Final answer
x = 9,347,725.72
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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.