Finding the Fourth Proportional to 19,577,926.80, 29,366,890.20 and 16,680,589.20
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Solution
The fourth proportional to 19,577,926.80, 29,366,890.20 and 16,680,589.20 is: 25,020,883.80
Step by Step Solution
- Step 1: Write the proportion equation
19,577,926.80 : 29,366,890.20 = 16,680,589.20 : x - Step 2: Convert to fraction form
19,577,926.80/29,366,890.20 = 16,680,589.20/x - Step 3: Cross multiply
19,577,926.80x = 29,366,890.20 × 16,680,589.20 - Step 4: Simplify right side
19,577,926.80x = 489,857,031,507,705.81 - Step 5: Solve for x
x = 489,857,031,507,705.81/19,577,926.80 - Step 6: Final answer
x = 25,020,883.80
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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.