Finding the Fourth Proportional to 18,464,551.80, 27,696,827.70 and 15,105,319.80
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Solution
The fourth proportional to 18,464,551.80, 27,696,827.70 and 15,105,319.80 is: 22,657,979.70
Step by Step Solution
- Step 1: Write the proportion equation
18,464,551.80 : 27,696,827.70 = 15,105,319.80 : x - Step 2: Convert to fraction form
18,464,551.80/27,696,827.70 = 15,105,319.80/x - Step 3: Cross multiply
18,464,551.80x = 27,696,827.70 × 15,105,319.80 - Step 4: Simplify right side
18,464,551.80x = 418,369,439,853,998.50 - Step 5: Solve for x
x = 418,369,439,853,998.50/18,464,551.80 - Step 6: Final answer
x = 22,657,979.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.