Finding the Fourth Proportional to 128,065,751.09, 176,730,793.57 and 69,328,414.31
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Solution
The fourth proportional to 128,065,751.09, 176,730,793.57 and 69,328,414.31 is: 95,673,242.64
Step by Step Solution
- Step 1: Write the proportion equation
128,065,751.09 : 176,730,793.57 = 69,328,414.31 : x - Step 2: Convert to fraction form
128,065,751.09/176,730,793.57 = 69,328,414.31/x - Step 3: Cross multiply
128,065,751.09x = 176,730,793.57 × 69,328,414.31 - Step 4: Simplify right side
128,065,751.09x = 12,252,465,677,609,402 - Step 5: Solve for x
x = 12,252,465,677,609,402/128,065,751.09 - Step 6: Final answer
x = 95,673,242.64
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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.