Finding the Fourth Proportional to 6,438,371.09, 8,884,950.06 and 3,537,948.79
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Solution
The fourth proportional to 6,438,371.09, 8,884,950.06 and 3,537,948.79 is: 4,882,368.21
Step by Step Solution
- Step 1: Write the proportion equation
6,438,371.09 : 8,884,950.06 = 3,537,948.79 : x - Step 2: Convert to fraction form
6,438,371.09/8,884,950.06 = 3,537,948.79/x - Step 3: Cross multiply
6,438,371.09x = 8,884,950.06 × 3,537,948.79 - Step 4: Simplify right side
6,438,371.09x = 31,434,498,313,987.43 - Step 5: Solve for x
x = 31,434,498,313,987.43/6,438,371.09 - Step 6: Final answer
x = 4,882,368.21
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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.