Finding the Fourth Proportional to 197,244,497.86, 272,197,725.92 and 109,142,208.88
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Solution
The fourth proportional to 197,244,497.86, 272,197,725.92 and 109,142,208.88 is: 150,616,424.70
Step by Step Solution
- Step 1: Write the proportion equation
197,244,497.86 : 272,197,725.92 = 109,142,208.88 : x - Step 2: Convert to fraction form
197,244,497.86/272,197,725.92 = 109,142,208.88/x - Step 3: Cross multiply
197,244,497.86x = 272,197,725.92 × 109,142,208.88 - Step 4: Simplify right side
197,244,497.86x = 29,708,261,059,156,412 - Step 5: Solve for x
x = 29,708,261,059,156,412/197,244,497.86 - Step 6: Final answer
x = 150,616,424.70
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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.