Finding the Fourth Proportional to 5,166,340.99, 7,130,537.63 and 3,420,931.83
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Solution
The fourth proportional to 5,166,340.99, 7,130,537.63 and 3,420,931.83 is: 4,721,539.51
Step by Step Solution
- Step 1: Write the proportion equation
5,166,340.99 : 7,130,537.63 = 3,420,931.83 : x - Step 2: Convert to fraction form
5,166,340.99/7,130,537.63 = 3,420,931.83/x - Step 3: Cross multiply
5,166,340.99x = 7,130,537.63 × 3,420,931.83 - Step 4: Simplify right side
5,166,340.99x = 24,393,083,112,464.08 - Step 5: Solve for x
x = 24,393,083,112,464.08/5,166,340.99 - Step 6: Final answer
x = 4,721,539.51
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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.