Finding the Fourth Proportional to 11,115,407.09, 15,338,931.72 and 6,154,069.10
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Solution
The fourth proportional to 11,115,407.09, 15,338,931.72 and 6,154,069.10 is: 8,492,432.61
Step by Step Solution
- Step 1: Write the proportion equation
11,115,407.09 : 15,338,931.72 = 6,154,069.10 : x - Step 2: Convert to fraction form
11,115,407.09/15,338,931.72 = 6,154,069.10/x - Step 3: Cross multiply
11,115,407.09x = 15,338,931.72 × 6,154,069.10 - Step 4: Simplify right side
11,115,407.09x = 94,396,845,648,367.19 - Step 5: Solve for x
x = 94,396,845,648,367.19/11,115,407.09 - Step 6: Final answer
x = 8,492,432.61
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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.