Finding the Fourth Proportional to 7,477,000.90, 11,215,501.35 and 2,428,821.70
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Solution
The fourth proportional to 7,477,000.90, 11,215,501.35 and 2,428,821.70 is: 3,643,232.55
Step by Step Solution
- Step 1: Write the proportion equation
7,477,000.90 : 11,215,501.35 = 2,428,821.70 : x - Step 2: Convert to fraction form
7,477,000.90/11,215,501.35 = 2,428,821.70/x - Step 3: Cross multiply
7,477,000.90x = 11,215,501.35 × 2,428,821.70 - Step 4: Simplify right side
7,477,000.90x = 27,240,453,055,259.30 - Step 5: Solve for x
x = 27,240,453,055,259.30/7,477,000.90 - Step 6: Final answer
x = 3,643,232.55
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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.