Finding the Fourth Proportional to 19,984,816.80, 29,930,003.82 and 9,756,681.12
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Solution
The fourth proportional to 19,984,816.80, 29,930,003.82 and 9,756,681.12 is: 14,611,967.98
Step by Step Solution
- Step 1: Write the proportion equation
19,984,816.80 : 29,930,003.82 = 9,756,681.12 : x - Step 2: Convert to fraction form
19,984,816.80/29,930,003.82 = 9,756,681.12/x - Step 3: Cross multiply
19,984,816.80x = 29,930,003.82 × 9,756,681.12 - Step 4: Simplify right side
19,984,816.80x = 292,017,503,192,121.88 - Step 5: Solve for x
x = 292,017,503,192,121.88/19,984,816.80 - Step 6: Final answer
x = 14,611,967.98
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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.