Finding the Fourth Proportional to 19,695,821.12, 29,545,148.70 and 7,565,285.09
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Solution
The fourth proportional to 19,695,821.12, 29,545,148.70 and 7,565,285.09 is: 11,348,471.93
Step by Step Solution
- Step 1: Write the proportion equation
19,695,821.12 : 29,545,148.70 = 7,565,285.09 : x - Step 2: Convert to fraction form
19,695,821.12/29,545,148.70 = 7,565,285.09/x - Step 3: Cross multiply
19,695,821.12x = 29,545,148.70 × 7,565,285.09 - Step 4: Simplify right side
19,695,821.12x = 223,517,473,036,070.97 - Step 5: Solve for x
x = 223,517,473,036,070.97/19,695,821.12 - Step 6: Final answer
x = 11,348,471.93
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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.