Finding the Fourth Proportional to 23,176,671.12, 31,989,685.32 and 15,837,474.96
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Solution
The fourth proportional to 23,176,671.12, 31,989,685.32 and 15,837,474.96 is: 21,859,732.90
Step by Step Solution
- Step 1: Write the proportion equation
23,176,671.12 : 31,989,685.32 = 15,837,474.96 : x - Step 2: Convert to fraction form
23,176,671.12/31,989,685.32 = 15,837,474.96/x - Step 3: Cross multiply
23,176,671.12x = 31,989,685.32 × 15,837,474.96 - Step 4: Simplify right side
23,176,671.12x = 506,635,840,233,779.62 - Step 5: Solve for x
x = 506,635,840,233,779.62/23,176,671.12 - Step 6: Final answer
x = 21,859,732.90
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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.