Finding the Fourth Proportional to 14,171,879.28, 19,557,813.60 and 7,977,325.68
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Solution
The fourth proportional to 14,171,879.28, 19,557,813.60 and 7,977,325.68 is: 11,009,058.54
Step by Step Solution
- Step 1: Write the proportion equation
14,171,879.28 : 19,557,813.60 = 7,977,325.68 : x - Step 2: Convert to fraction form
14,171,879.28/19,557,813.60 = 7,977,325.68/x - Step 3: Cross multiply
14,171,879.28x = 19,557,813.60 × 7,977,325.68 - Step 4: Simplify right side
14,171,879.28x = 156,019,048,675,933.25 - Step 5: Solve for x
x = 156,019,048,675,933.25/14,171,879.28 - Step 6: Final answer
x = 11,009,058.54
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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.