Finding the Fourth Proportional to 132,387,827.71, 182,696,855.09 and 72,855,972.99
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Solution
The fourth proportional to 132,387,827.71, 182,696,855.09 and 72,855,972.99 is: 100,542,152.32
Step by Step Solution
- Step 1: Write the proportion equation
132,387,827.71 : 182,696,855.09 = 72,855,972.99 : x - Step 2: Convert to fraction form
132,387,827.71/182,696,855.09 = 72,855,972.99/x - Step 3: Cross multiply
132,387,827.71x = 182,696,855.09 × 72,855,972.99 - Step 4: Simplify right side
132,387,827.71x = 13,310,557,138,699,360 - Step 5: Solve for x
x = 13,310,557,138,699,360/132,387,827.71 - Step 6: Final answer
x = 100,542,152.32
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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.