Finding the Fourth Proportional to 15,853,767.12, 21,878,310.60 and 8,610,423.12
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Solution
The fourth proportional to 15,853,767.12, 21,878,310.60 and 8,610,423.12 is: 11,882,444.72
Step by Step Solution
- Step 1: Write the proportion equation
15,853,767.12 : 21,878,310.60 = 8,610,423.12 : x - Step 2: Convert to fraction form
15,853,767.12/21,878,310.60 = 8,610,423.12/x - Step 3: Cross multiply
15,853,767.12x = 21,878,310.60 × 8,610,423.12 - Step 4: Simplify right side
15,853,767.12x = 188,381,511,416,781.06 - Step 5: Solve for x
x = 188,381,511,416,781.06/15,853,767.12 - Step 6: Final answer
x = 11,882,444.72
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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.