Finding the Fourth Proportional to 135,143,916.96, 186,491,422.64 and 76,403,070.08
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Solution
The fourth proportional to 135,143,916.96, 186,491,422.64 and 76,403,070.08 is: 105,432,175.96
Step by Step Solution
- Step 1: Write the proportion equation
135,143,916.96 : 186,491,422.64 = 76,403,070.08 : x - Step 2: Convert to fraction form
135,143,916.96/186,491,422.64 = 76,403,070.08/x - Step 3: Cross multiply
135,143,916.96x = 186,491,422.64 × 76,403,070.08 - Step 4: Simplify right side
135,143,916.96x = 14,248,517,233,282,818 - Step 5: Solve for x
x = 14,248,517,233,282,818/135,143,916.96 - Step 6: Final answer
x = 105,432,175.96
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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.