Finding the Fourth Proportional to 6,519,820.16, 8,996,901.78 and 3,618,982.70
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Solution
The fourth proportional to 6,519,820.16, 8,996,901.78 and 3,618,982.70 is: 4,993,946.32
Step by Step Solution
- Step 1: Write the proportion equation
6,519,820.16 : 8,996,901.78 = 3,618,982.70 : x - Step 2: Convert to fraction form
6,519,820.16/8,996,901.78 = 3,618,982.70/x - Step 3: Cross multiply
6,519,820.16x = 8,996,901.78 × 3,618,982.70 - Step 4: Simplify right side
6,519,820.16x = 32,559,631,895,419.21 - Step 5: Solve for x
x = 32,559,631,895,419.21/6,519,820.16 - Step 6: Final answer
x = 4,993,946.32
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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.