Finding the Fourth Proportional to 79,836,976.44, 110,075,155.74 and 66,625,221.96
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Solution
The fourth proportional to 79,836,976.44, 110,075,155.74 and 66,625,221.96 is: 91,859,461.75
Step by Step Solution
- Step 1: Write the proportion equation
79,836,976.44 : 110,075,155.74 = 66,625,221.96 : x - Step 2: Convert to fraction form
79,836,976.44/110,075,155.74 = 66,625,221.96/x - Step 3: Cross multiply
79,836,976.44x = 110,075,155.74 × 66,625,221.96 - Step 4: Simplify right side
79,836,976.44x = 7,333,781,683,459,068 - Step 5: Solve for x
x = 7,333,781,683,459,068/79,836,976.44 - Step 6: Final answer
x = 91,859,461.75
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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.