Finding the Fourth Proportional to 5,318,348.84, 7,980,014.62 and 2,621,203.76
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Solution
The fourth proportional to 5,318,348.84, 7,980,014.62 and 2,621,203.76 is: 3,933,033.53
Step by Step Solution
- Step 1: Write the proportion equation
5,318,348.84 : 7,980,014.62 = 2,621,203.76 : x - Step 2: Convert to fraction form
5,318,348.84/7,980,014.62 = 2,621,203.76/x - Step 3: Cross multiply
5,318,348.84x = 7,980,014.62 × 2,621,203.76 - Step 4: Simplify right side
5,318,348.84x = 20,917,244,326,798.97 - Step 5: Solve for x
x = 20,917,244,326,798.97/5,318,348.84 - Step 6: Final answer
x = 3,933,033.53
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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.