Finding the Fourth Proportional to 3,991,457.20, 5,506,647.96 and 2,460,907.12
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Solution
The fourth proportional to 3,991,457.20, 5,506,647.96 and 2,460,907.12 is: 3,395,088.18
Step by Step Solution
- Step 1: Write the proportion equation
3,991,457.20 : 5,506,647.96 = 2,460,907.12 : x - Step 2: Convert to fraction form
3,991,457.20/5,506,647.96 = 2,460,907.12/x - Step 3: Cross multiply
3,991,457.20x = 5,506,647.96 × 2,460,907.12 - Step 4: Simplify right side
3,991,457.20x = 13,551,349,172,097.48 - Step 5: Solve for x
x = 13,551,349,172,097.48/3,991,457.20 - Step 6: Final answer
x = 3,395,088.18
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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.