Finding the Fourth Proportional to 79,440,737.49, 119,160,930.06 and 21,148,429.77
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Solution
The fourth proportional to 79,440,737.49, 119,160,930.06 and 21,148,429.77 is: 31,722,597.75
Step by Step Solution
- Step 1: Write the proportion equation
79,440,737.49 : 119,160,930.06 = 21,148,429.77 : x - Step 2: Convert to fraction form
79,440,737.49/119,160,930.06 = 21,148,429.77/x - Step 3: Cross multiply
79,440,737.49x = 119,160,930.06 × 21,148,429.77 - Step 4: Simplify right side
79,440,737.49x = 2,520,066,560,701,792 - Step 5: Solve for x
x = 2,520,066,560,701,792/79,440,737.49 - Step 6: Final answer
x = 31,722,597.75
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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.