Finding the Fourth Proportional to 288,671,342.08, 397,981,077.12 and 229,329,537.28
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Solution
The fourth proportional to 288,671,342.08, 397,981,077.12 and 229,329,537.28 is: 316,168,607.54
Step by Step Solution
- Step 1: Write the proportion equation
288,671,342.08 : 397,981,077.12 = 229,329,537.28 : x - Step 2: Convert to fraction form
288,671,342.08/397,981,077.12 = 229,329,537.28/x - Step 3: Cross multiply
288,671,342.08x = 397,981,077.12 × 229,329,537.28 - Step 4: Simplify right side
288,671,342.08x = 91,268,816,262,125,600 - Step 5: Solve for x
x = 91,268,816,262,125,600/288,671,342.08 - Step 6: Final answer
x = 316,168,607.54
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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.