Finding the Fourth Proportional to 769,824,686.90, 1,154,737,030.35 and 360,922,171.70
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Solution
The fourth proportional to 769,824,686.90, 1,154,737,030.35 and 360,922,171.70 is: 541,383,257.55
Step by Step Solution
- Step 1: Write the proportion equation
769,824,686.90 : 1,154,737,030.35 = 360,922,171.70 : x - Step 2: Convert to fraction form
769,824,686.90/1,154,737,030.35 = 360,922,171.70/x - Step 3: Cross multiply
769,824,686.90x = 1,154,737,030.35 × 360,922,171.70 - Step 4: Simplify right side
769,824,686.90x = 416,770,196,736,330,752 - Step 5: Solve for x
x = 416,770,196,736,330,752/769,824,686.90 - Step 6: Final answer
x = 541,383,257.55
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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.