Finding the Fourth Proportional to 128,065,552.70, 176,730,424.17 and 69,328,174.82
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Solution
The fourth proportional to 128,065,552.70, 176,730,424.17 and 69,328,174.82 is: 95,672,860.38
Step by Step Solution
- Step 1: Write the proportion equation
128,065,552.70 : 176,730,424.17 = 69,328,174.82 : x - Step 2: Convert to fraction form
128,065,552.70/176,730,424.17 = 69,328,174.82/x - Step 3: Cross multiply
128,065,552.70x = 176,730,424.17 × 69,328,174.82 - Step 4: Simplify right side
128,065,552.70x = 12,252,397,742,870,512 - Step 5: Solve for x
x = 12,252,397,742,870,512/128,065,552.70 - Step 6: Final answer
x = 95,672,860.38
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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.