Finding the Fourth Proportional to 7,232,109.81, 9,979,651.87 and 4,291,420.15
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Solution
The fourth proportional to 7,232,109.81, 9,979,651.87 and 4,291,420.15 is: 5,921,768.37
Step by Step Solution
- Step 1: Write the proportion equation
7,232,109.81 : 9,979,651.87 = 4,291,420.15 : x - Step 2: Convert to fraction form
7,232,109.81/9,979,651.87 = 4,291,420.15/x - Step 3: Cross multiply
7,232,109.81x = 9,979,651.87 × 4,291,420.15 - Step 4: Simplify right side
7,232,109.81x = 42,826,879,124,903.18 - Step 5: Solve for x
x = 42,826,879,124,903.18/7,232,109.81 - Step 6: Final answer
x = 5,921,768.37
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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.