Finding the Fourth Proportional to 10,990,460.56, 15,149,317.08 and 8,663,560.96
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Solution
The fourth proportional to 10,990,460.56, 15,149,317.08 and 8,663,560.96 is: 11,941,904.65
Step by Step Solution
- Step 1: Write the proportion equation
10,990,460.56 : 15,149,317.08 = 8,663,560.96 : x - Step 2: Convert to fraction form
10,990,460.56/15,149,317.08 = 8,663,560.96/x - Step 3: Cross multiply
10,990,460.56x = 15,149,317.08 × 8,663,560.96 - Step 4: Simplify right side
10,990,460.56x = 131,247,032,024,949.22 - Step 5: Solve for x
x = 131,247,032,024,949.22/10,990,460.56 - Step 6: Final answer
x = 11,941,904.65
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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.