Finding the Fourth Proportional to 19,586,646.40, 29,379,969.60 and 6,124,835.20
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Solution
The fourth proportional to 19,586,646.40, 29,379,969.60 and 6,124,835.20 is: 9,187,252.80
Step by Step Solution
- Step 1: Write the proportion equation
19,586,646.40 : 29,379,969.60 = 6,124,835.20 : x - Step 2: Convert to fraction form
19,586,646.40/29,379,969.60 = 6,124,835.20/x - Step 3: Cross multiply
19,586,646.40x = 29,379,969.60 × 6,124,835.20 - Step 4: Simplify right side
19,586,646.40x = 179,947,471,981,009.94 - Step 5: Solve for x
x = 179,947,471,981,009.94/19,586,646.40 - Step 6: Final answer
x = 9,187,252.80
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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.