Finding the Fourth Proportional to 27,720,287.42, 38,249,747.23 and 15,957,282.99
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Solution
The fourth proportional to 27,720,287.42, 38,249,747.23 and 15,957,282.99 is: 22,018,604.34
Step by Step Solution
- Step 1: Write the proportion equation
27,720,287.42 : 38,249,747.23 = 15,957,282.99 : x - Step 2: Convert to fraction form
27,720,287.42/38,249,747.23 = 15,957,282.99/x - Step 3: Cross multiply
27,720,287.42x = 38,249,747.23 × 15,957,282.99 - Step 4: Simplify right side
27,720,287.42x = 610,362,040,933,654 - Step 5: Solve for x
x = 610,362,040,933,654/27,720,287.42 - Step 6: Final answer
x = 22,018,604.34
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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.