Finding the Fourth Proportional to 13,702,901.49, 18,908,478.41 and 7,589,799.09
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Solution
The fourth proportional to 13,702,901.49, 18,908,478.41 and 7,589,799.09 is: 10,473,077.71
Step by Step Solution
- Step 1: Write the proportion equation
13,702,901.49 : 18,908,478.41 = 7,589,799.09 : x - Step 2: Convert to fraction form
13,702,901.49/18,908,478.41 = 7,589,799.09/x - Step 3: Cross multiply
13,702,901.49x = 18,908,478.41 × 7,589,799.09 - Step 4: Simplify right side
13,702,901.49x = 143,511,552,191,553.66 - Step 5: Solve for x
x = 143,511,552,191,553.66/13,702,901.49 - Step 6: Final answer
x = 10,473,077.71
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1.5x scale
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.