Finding the Fourth Proportional to 21,513,117.80, 32,257,235.10 and 8,051,306.60
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Solution
The fourth proportional to 21,513,117.80, 32,257,235.10 and 8,051,306.60 is: 12,072,303.62
Step by Step Solution
- Step 1: Write the proportion equation
21,513,117.80 : 32,257,235.10 = 8,051,306.60 : x - Step 2: Convert to fraction form
21,513,117.80/32,257,235.10 = 8,051,306.60/x - Step 3: Cross multiply
21,513,117.80x = 32,257,235.10 × 8,051,306.60 - Step 4: Simplify right side
21,513,117.80x = 259,712,889,858,381.66 - Step 5: Solve for x
x = 259,712,889,858,381.66/21,513,117.80 - Step 6: Final answer
x = 12,072,303.62
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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.