Finding the Fourth Proportional to 424,016,328.70, 585,139,013.67 and 238,378,169.98
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Solution
The fourth proportional to 424,016,328.70, 585,139,013.67 and 238,378,169.98 is: 328,959,895.70
Step by Step Solution
- Step 1: Write the proportion equation
424,016,328.70 : 585,139,013.67 = 238,378,169.98 : x - Step 2: Convert to fraction form
424,016,328.70/585,139,013.67 = 238,378,169.98/x - Step 3: Cross multiply
424,016,328.70x = 585,139,013.67 × 238,378,169.98 - Step 4: Simplify right side
424,016,328.70x = 139,484,367,262,556,784 - Step 5: Solve for x
x = 139,484,367,262,556,784/424,016,328.70 - Step 6: Final answer
x = 328,959,895.70
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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.