Finding the Fourth Proportional to 196,717,156.19, 271,473,454.14 and 107,412,641.21
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Solution
The fourth proportional to 196,717,156.19, 271,473,454.14 and 107,412,641.21 is: 148,231,508.08
Step by Step Solution
- Step 1: Write the proportion equation
196,717,156.19 : 271,473,454.14 = 107,412,641.21 : x - Step 2: Convert to fraction form
196,717,156.19/271,473,454.14 = 107,412,641.21/x - Step 3: Cross multiply
196,717,156.19x = 271,473,454.14 × 107,412,641.21 - Step 4: Simplify right side
196,717,156.19x = 29,159,680,726,221,840 - Step 5: Solve for x
x = 29,159,680,726,221,840/196,717,156.19 - Step 6: Final answer
x = 148,231,508.08
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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.