Finding the Fourth Proportional to 215,705,154.99, 323,044,135.18 and 137,740,565.19
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Solution
The fourth proportional to 215,705,154.99, 323,044,135.18 and 137,740,565.19 is: 206,282,885.37
Step by Step Solution
- Step 1: Write the proportion equation
215,705,154.99 : 323,044,135.18 = 137,740,565.19 : x - Step 2: Convert to fraction form
215,705,154.99/323,044,135.18 = 137,740,565.19/x - Step 3: Cross multiply
215,705,154.99x = 323,044,135.18 × 137,740,565.19 - Step 4: Simplify right side
215,705,154.99x = 44,496,281,761,007,960 - Step 5: Solve for x
x = 44,496,281,761,007,960/215,705,154.99 - Step 6: Final answer
x = 206,282,885.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.