Finding the Fourth Proportional to 21,653,934.81, 29,875,073.51 and 12,354,824.48
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Solution
The fourth proportional to 21,653,934.81, 29,875,073.51 and 12,354,824.48 is: 17,045,460.45
Step by Step Solution
- Step 1: Write the proportion equation
21,653,934.81 : 29,875,073.51 = 12,354,824.48 : x - Step 2: Convert to fraction form
21,653,934.81/29,875,073.51 = 12,354,824.48/x - Step 3: Cross multiply
21,653,934.81x = 29,875,073.51 × 12,354,824.48 - Step 4: Simplify right side
21,653,934.81x = 369,101,289,393,772.19 - Step 5: Solve for x
x = 369,101,289,393,772.19/21,653,934.81 - Step 6: Final answer
x = 17,045,460.45
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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.