Finding the Fourth Proportional to 13,324,511.25, 18,387,952.27 and 7,817,979.80
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Solution
The fourth proportional to 13,324,511.25, 18,387,952.27 and 7,817,979.80 is: 10,788,886.49
Step by Step Solution
- Step 1: Write the proportion equation
13,324,511.25 : 18,387,952.27 = 7,817,979.80 : x - Step 2: Convert to fraction form
13,324,511.25/18,387,952.27 = 7,817,979.80/x - Step 3: Cross multiply
13,324,511.25x = 18,387,952.27 × 7,817,979.80 - Step 4: Simplify right side
13,324,511.25x = 143,756,639,436,649.06 - Step 5: Solve for x
x = 143,756,639,436,649.06/13,324,511.25 - Step 6: Final answer
x = 10,788,886.49
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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.