Finding the Fourth Proportional to 11,708,862.20, 16,158,356.99 and 6,481,956.96
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Solution
The fourth proportional to 11,708,862.20, 16,158,356.99 and 6,481,956.96 is: 8,945,170.99
Step by Step Solution
- Step 1: Write the proportion equation
11,708,862.20 : 16,158,356.99 = 6,481,956.96 : x - Step 2: Convert to fraction form
11,708,862.20/16,158,356.99 = 6,481,956.96/x - Step 3: Cross multiply
11,708,862.20x = 16,158,356.99 × 6,481,956.96 - Step 4: Simplify right side
11,708,862.20x = 104,737,774,545,392.70 - Step 5: Solve for x
x = 104,737,774,545,392.70/11,708,862.20 - Step 6: Final answer
x = 8,945,170.99
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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.