Finding the Fourth Proportional to 38,655,724.20, 57,990,584.70 and 19,438,117.80
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Solution
The fourth proportional to 38,655,724.20, 57,990,584.70 and 19,438,117.80 is: 29,160,695.86
Step by Step Solution
- Step 1: Write the proportion equation
38,655,724.20 : 57,990,584.70 = 19,438,117.80 : x - Step 2: Convert to fraction form
38,655,724.20/57,990,584.70 = 19,438,117.80/x - Step 3: Cross multiply
38,655,724.20x = 57,990,584.70 × 19,438,117.80 - Step 4: Simplify right side
38,655,724.20x = 1,127,227,816,689,477.75 - Step 5: Solve for x
x = 1,127,227,816,689,477.75/38,655,724.20 - Step 6: Final answer
x = 29,160,695.86
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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.