Finding the Fourth Proportional to 8,612,490.98, 12,918,306.99 and 3,220,744.97
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Solution
The fourth proportional to 8,612,490.98, 12,918,306.99 and 3,220,744.97 is: 4,830,956.85
Step by Step Solution
- Step 1: Write the proportion equation
8,612,490.98 : 12,918,306.99 = 3,220,744.97 : x - Step 2: Convert to fraction form
8,612,490.98/12,918,306.99 = 3,220,744.97/x - Step 3: Cross multiply
8,612,490.98x = 12,918,306.99 × 3,220,744.97 - Step 4: Simplify right side
8,612,490.98x = 41,606,572,258,958.34 - Step 5: Solve for x
x = 41,606,572,258,958.34/8,612,490.98 - Step 6: Final answer
x = 4,830,956.85
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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.