Finding the Fourth Proportional to 154,660,407.84, 213,436,841.52 and 85,051,085.28
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Solution
The fourth proportional to 154,660,407.84, 213,436,841.52 and 85,051,085.28 is: 117,373,510.54
Step by Step Solution
- Step 1: Write the proportion equation
154,660,407.84 : 213,436,841.52 = 85,051,085.28 : x - Step 2: Convert to fraction form
154,660,407.84/213,436,841.52 = 85,051,085.28/x - Step 3: Cross multiply
154,660,407.84x = 213,436,841.52 × 85,051,085.28 - Step 4: Simplify right side
154,660,407.84x = 18,153,035,010,011,364 - Step 5: Solve for x
x = 18,153,035,010,011,364/154,660,407.84 - Step 6: Final answer
x = 117,373,510.54
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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.