Finding the Fourth Proportional to 38,326,968.68, 57,487,214.42 and 12,418,721.64
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Solution
The fourth proportional to 38,326,968.68, 57,487,214.42 and 12,418,721.64 is: 18,627,033.09
Step by Step Solution
- Step 1: Write the proportion equation
38,326,968.68 : 57,487,214.42 = 12,418,721.64 : x - Step 2: Convert to fraction form
38,326,968.68/57,487,214.42 = 12,418,721.64/x - Step 3: Cross multiply
38,326,968.68x = 57,487,214.42 × 12,418,721.64 - Step 4: Simplify right side
38,326,968.68x = 713,917,713,740,974.12 - Step 5: Solve for x
x = 713,917,713,740,974.12/38,326,968.68 - Step 6: Final answer
x = 18,627,033.09
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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.