Finding the Fourth Proportional to 11,391,809.83, 15,720,974.30 and 6,497,487.29
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Solution
The fourth proportional to 11,391,809.83, 15,720,974.30 and 6,497,487.29 is: 8,966,690.31
Step by Step Solution
- Step 1: Write the proportion equation
11,391,809.83 : 15,720,974.30 = 6,497,487.29 : x - Step 2: Convert to fraction form
11,391,809.83/15,720,974.30 = 6,497,487.29/x - Step 3: Cross multiply
11,391,809.83x = 15,720,974.30 × 6,497,487.29 - Step 4: Simplify right side
11,391,809.83x = 102,146,830,756,212.81 - Step 5: Solve for x
x = 102,146,830,756,212.81/11,391,809.83 - Step 6: Final answer
x = 8,966,690.31
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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.