Finding the Fourth Proportional to 19,888,232.28, 29,832,263.28 and 5,511,258.72
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Solution
The fourth proportional to 19,888,232.28, 29,832,263.28 and 5,511,258.72 is: 8,266,864.49
Step by Step Solution
- Step 1: Write the proportion equation
19,888,232.28 : 29,832,263.28 = 5,511,258.72 : x - Step 2: Convert to fraction form
19,888,232.28/29,832,263.28 = 5,511,258.72/x - Step 3: Cross multiply
19,888,232.28x = 29,832,263.28 × 5,511,258.72 - Step 4: Simplify right side
19,888,232.28x = 164,413,321,139,235.81 - Step 5: Solve for x
x = 164,413,321,139,235.81/19,888,232.28 - Step 6: Final answer
x = 8,266,864.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.