Finding the Fourth Proportional to 195,309,561.27, 269,750,888.64 and 128,626,607.73
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Solution
The fourth proportional to 195,309,561.27, 269,750,888.64 and 128,626,607.73 is: 177,652,038.70
Step by Step Solution
- Step 1: Write the proportion equation
195,309,561.27 : 269,750,888.64 = 128,626,607.73 : x - Step 2: Convert to fraction form
195,309,561.27/269,750,888.64 = 128,626,607.73/x - Step 3: Cross multiply
195,309,561.27x = 269,750,888.64 × 128,626,607.73 - Step 4: Simplify right side
195,309,561.27x = 34,697,141,737,916,192 - Step 5: Solve for x
x = 34,697,141,737,916,192/195,309,561.27 - Step 6: Final answer
x = 177,652,038.70
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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.