Finding the Fourth Proportional to 15,579,716, 21,499,611.99 and 8,704,249.70
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Solution
The fourth proportional to 15,579,716, 21,499,611.99 and 8,704,249.70 is: 12,011,643.29
Step by Step Solution
- Step 1: Write the proportion equation
15,579,716 : 21,499,611.99 = 8,704,249.70 : x - Step 2: Convert to fraction form
15,579,716/21,499,611.99 = 8,704,249.70/x - Step 3: Cross multiply
15,579,716x = 21,499,611.99 × 8,704,249.70 - Step 4: Simplify right side
15,579,716x = 187,137,991,214,073.88 - Step 5: Solve for x
x = 187,137,991,214,073.88/15,579,716 - Step 6: Final answer
x = 12,011,643.29
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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.