Finding the Fourth Proportional to 5,318,346.84, 7,980,011.62 and 2,621,201.76
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Solution
The fourth proportional to 5,318,346.84, 7,980,011.62 and 2,621,201.76 is: 3,933,030.53
Step by Step Solution
- Step 1: Write the proportion equation
5,318,346.84 : 7,980,011.62 = 2,621,201.76 : x - Step 2: Convert to fraction form
5,318,346.84/7,980,011.62 = 2,621,201.76/x - Step 3: Cross multiply
5,318,346.84x = 7,980,011.62 × 2,621,201.76 - Step 4: Simplify right side
5,318,346.84x = 20,917,220,503,164.45 - Step 5: Solve for x
x = 20,917,220,503,164.45/5,318,346.84 - Step 6: Final answer
x = 3,933,030.53
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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.