Finding the Fourth Proportional to 10,369,894.20, 15,554,841.30 and 8,951,551.80
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Solution
The fourth proportional to 10,369,894.20, 15,554,841.30 and 8,951,551.80 is: 13,427,327.70
Step by Step Solution
- Step 1: Write the proportion equation
10,369,894.20 : 15,554,841.30 = 8,951,551.80 : x - Step 2: Convert to fraction form
10,369,894.20/15,554,841.30 = 8,951,551.80/x - Step 3: Cross multiply
10,369,894.20x = 15,554,841.30 × 8,951,551.80 - Step 4: Simplify right side
10,369,894.20x = 139,239,967,637,729.36 - Step 5: Solve for x
x = 139,239,967,637,729.36/10,369,894.20 - Step 6: Final answer
x = 13,427,327.70
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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.