Finding the Fourth Proportional to 11,438,971.14, 15,785,719.12 and 6,211,933.62
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Solution
The fourth proportional to 11,438,971.14, 15,785,719.12 and 6,211,933.62 is: 8,572,435.23
Step by Step Solution
- Step 1: Write the proportion equation
11,438,971.14 : 15,785,719.12 = 6,211,933.62 : x - Step 2: Convert to fraction form
11,438,971.14/15,785,719.12 = 6,211,933.62/x - Step 3: Cross multiply
11,438,971.14x = 15,785,719.12 × 6,211,933.62 - Step 4: Simplify right side
11,438,971.14x = 98,059,839,222,946.39 - Step 5: Solve for x
x = 98,059,839,222,946.39/11,438,971.14 - Step 6: Final answer
x = 8,572,435.23
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1.5x scale
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.