Finding the Fourth Proportional to 195,266,992.80, 269,450,639.35 and 115,868,372.12
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Solution
The fourth proportional to 195,266,992.80, 269,450,639.35 and 115,868,372.12 is: 159,887,784.92
Step by Step Solution
- Step 1: Write the proportion equation
195,266,992.80 : 269,450,639.35 = 115,868,372.12 : x - Step 2: Convert to fraction form
195,266,992.80/269,450,639.35 = 115,868,372.12/x - Step 3: Cross multiply
195,266,992.80x = 269,450,639.35 × 115,868,372.12 - Step 4: Simplify right side
195,266,992.80x = 31,220,806,946,251,120 - Step 5: Solve for x
x = 31,220,806,946,251,120/195,266,992.80 - Step 6: Final answer
x = 159,887,784.92
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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.