Finding the Fourth Proportional to 14,247,486.29, 19,661,547.90 and 7,721,115.75
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Solution
The fourth proportional to 14,247,486.29, 19,661,547.90 and 7,721,115.75 is: 10,655,148.85
Step by Step Solution
- Step 1: Write the proportion equation
14,247,486.29 : 19,661,547.90 = 7,721,115.75 : x - Step 2: Convert to fraction form
14,247,486.29/19,661,547.90 = 7,721,115.75/x - Step 3: Cross multiply
14,247,486.29x = 19,661,547.90 × 7,721,115.75 - Step 4: Simplify right side
14,247,486.29x = 151,809,087,211,411.94 - Step 5: Solve for x
x = 151,809,087,211,411.94/14,247,486.29 - Step 6: Final answer
x = 10,655,148.85
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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.