Finding the Fourth Proportional to 207,917,792.46, 286,942,489.74 and 118,611,702.54
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Solution
The fourth proportional to 207,917,792.46, 286,942,489.74 and 118,611,702.54 is: 163,693,240.66
Step by Step Solution
- Step 1: Write the proportion equation
207,917,792.46 : 286,942,489.74 = 118,611,702.54 : x - Step 2: Convert to fraction form
207,917,792.46/286,942,489.74 = 118,611,702.54/x - Step 3: Cross multiply
207,917,792.46x = 286,942,489.74 × 118,611,702.54 - Step 4: Simplify right side
207,917,792.46x = 34,034,737,239,127,884 - Step 5: Solve for x
x = 34,034,737,239,127,884/207,917,792.46 - Step 6: Final answer
x = 163,693,240.66
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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.