Finding the Fourth Proportional to 11,157,271.40, 15,396,190.28 and 6,261,547.64
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Solution
The fourth proportional to 11,157,271.40, 15,396,190.28 and 6,261,547.64 is: 8,640,461.94
Step by Step Solution
- Step 1: Write the proportion equation
11,157,271.40 : 15,396,190.28 = 6,261,547.64 : x - Step 2: Convert to fraction form
11,157,271.40/15,396,190.28 = 6,261,547.64/x - Step 3: Cross multiply
11,157,271.40x = 15,396,190.28 × 6,261,547.64 - Step 4: Simplify right side
11,157,271.40x = 96,403,978,885,652.77 - Step 5: Solve for x
x = 96,403,978,885,652.77/11,157,271.40 - Step 6: Final answer
x = 8,640,461.94
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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.