Finding the Fourth Proportional to 7,447,030.80, 11,172,346.99 and 2,588,635.92
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Solution
The fourth proportional to 7,447,030.80, 11,172,346.99 and 2,588,635.92 is: 3,883,579.84
Step by Step Solution
- Step 1: Write the proportion equation
7,447,030.80 : 11,172,346.99 = 2,588,635.92 : x - Step 2: Convert to fraction form
7,447,030.80/11,172,346.99 = 2,588,635.92/x - Step 3: Cross multiply
7,447,030.80x = 11,172,346.99 × 2,588,635.92 - Step 4: Simplify right side
7,447,030.80x = 28,921,138,722,546.29 - Step 5: Solve for x
x = 28,921,138,722,546.29/7,447,030.80 - Step 6: Final answer
x = 3,883,579.84
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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.