Finding the Fourth Proportional to 128,452,561.02, 177,265,810.62 and 69,715,747.98
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Solution
The fourth proportional to 128,452,561.02, 177,265,810.62 and 69,715,747.98 is: 96,208,424.97
Step by Step Solution
- Step 1: Write the proportion equation
128,452,561.02 : 177,265,810.62 = 69,715,747.98 : x - Step 2: Convert to fraction form
128,452,561.02/177,265,810.62 = 69,715,747.98/x - Step 3: Cross multiply
128,452,561.02x = 177,265,810.62 × 69,715,747.98 - Step 4: Simplify right side
128,452,561.02x = 12,358,218,578,654,328 - Step 5: Solve for x
x = 12,358,218,578,654,328/128,452,561.02 - Step 6: Final answer
x = 96,208,424.97
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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.