Finding the Fourth Proportional to 38,560,928.67, 53,214,184.71 and 20,919,831.18
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Solution
The fourth proportional to 38,560,928.67, 53,214,184.71 and 20,919,831.18 is: 28,869,422.99
Step by Step Solution
- Step 1: Write the proportion equation
38,560,928.67 : 53,214,184.71 = 20,919,831.18 : x - Step 2: Convert to fraction form
38,560,928.67/53,214,184.71 = 20,919,831.18/x - Step 3: Cross multiply
38,560,928.67x = 53,214,184.71 × 20,919,831.18 - Step 4: Simplify right side
38,560,928.67x = 1,113,231,760,514,537.25 - Step 5: Solve for x
x = 1,113,231,760,514,537.25/38,560,928.67 - Step 6: Final answer
x = 28,869,422.99
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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.