Finding the Fourth Proportional to 122,297,981.35, 183,215,508.36 and 72,293,095.43
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Solution
The fourth proportional to 122,297,981.35, 183,215,508.36 and 72,293,095.43 is: 108,302,819.75
Step by Step Solution
- Step 1: Write the proportion equation
122,297,981.35 : 183,215,508.36 = 72,293,095.43 : x - Step 2: Convert to fraction form
122,297,981.35/183,215,508.36 = 72,293,095.43/x - Step 3: Cross multiply
122,297,981.35x = 183,215,508.36 × 72,293,095.43 - Step 4: Simplify right side
122,297,981.35x = 13,245,216,229,338,566 - Step 5: Solve for x
x = 13,245,216,229,338,566/122,297,981.35 - Step 6: Final answer
x = 108,302,819.75
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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.