Finding the Fourth Proportional to 1,074,586,611.70, 1,609,192,531.95 and 859,595,763.70
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Solution
The fourth proportional to 1,074,586,611.70, 1,609,192,531.95 and 859,595,763.70 is: 1,287,243,920.95
Step by Step Solution
- Step 1: Write the proportion equation
1,074,586,611.70 : 1,609,192,531.95 = 859,595,763.70 : x - Step 2: Convert to fraction form
1,074,586,611.70/1,609,192,531.95 = 859,595,763.70/x - Step 3: Cross multiply
1,074,586,611.70x = 1,609,192,531.95 × 859,595,763.70 - Step 4: Simplify right side
1,074,586,611.70x = 1,383,255,083,441,896,960 - Step 5: Solve for x
x = 1,383,255,083,441,896,960/1,074,586,611.70 - Step 6: Final answer
x = 1,287,243,920.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.