Finding the Fourth Proportional to 38,147,208.12, 52,641,545.36 and 21,628,444.23
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Solution
The fourth proportional to 38,147,208.12, 52,641,545.36 and 21,628,444.23 is: 29,846,344.83
Step by Step Solution
- Step 1: Write the proportion equation
38,147,208.12 : 52,641,545.36 = 21,628,444.23 : x - Step 2: Convert to fraction form
38,147,208.12/52,641,545.36 = 21,628,444.23/x - Step 3: Cross multiply
38,147,208.12x = 52,641,545.36 × 21,628,444.23 - Step 4: Simplify right side
38,147,208.12x = 1,138,554,727,891,633 - Step 5: Solve for x
x = 1,138,554,727,891,633/38,147,208.12 - Step 6: Final answer
x = 29,846,344.83
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1.5x scale
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.