Finding the Fourth Proportional to 11,286,089.21, 15,575,763.68 and 6,392,181.90
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Solution
The fourth proportional to 11,286,089.21, 15,575,763.68 and 6,392,181.90 is: 8,821,755.06
Step by Step Solution
- Step 1: Write the proportion equation
11,286,089.21 : 15,575,763.68 = 6,392,181.90 : x - Step 2: Convert to fraction form
11,286,089.21/15,575,763.68 = 6,392,181.90/x - Step 3: Cross multiply
11,286,089.21x = 15,575,763.68 × 6,392,181.90 - Step 4: Simplify right side
11,286,089.21x = 99,563,114,607,574.06 - Step 5: Solve for x
x = 99,563,114,607,574.06/11,286,089.21 - Step 6: Final answer
x = 8,821,755.06
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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.