Finding the Fourth Proportional to 19,686,116.70, 29,529,175.05 and 18,835,811.10
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Solution
The fourth proportional to 19,686,116.70, 29,529,175.05 and 18,835,811.10 is: 28,253,716.65
Step by Step Solution
- Step 1: Write the proportion equation
19,686,116.70 : 29,529,175.05 = 18,835,811.10 : x - Step 2: Convert to fraction form
19,686,116.70/29,529,175.05 = 18,835,811.10/x - Step 3: Cross multiply
19,686,116.70x = 29,529,175.05 × 18,835,811.10 - Step 4: Simplify right side
19,686,116.70x = 556,205,963,180,633.12 - Step 5: Solve for x
x = 556,205,963,180,633.12/19,686,116.70 - Step 6: Final answer
x = 28,253,716.65
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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.