Finding the Fourth Proportional to 385,595,106.84, 578,391,398.76 and 139,951,414.32
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Solution
The fourth proportional to 385,595,106.84, 578,391,398.76 and 139,951,414.32 is: 209,926,663.62
Step by Step Solution
- Step 1: Write the proportion equation
385,595,106.84 : 578,391,398.76 = 139,951,414.32 : x - Step 2: Convert to fraction form
385,595,106.84/578,391,398.76 = 139,951,414.32/x - Step 3: Cross multiply
385,595,106.84x = 578,391,398.76 × 139,951,414.32 - Step 4: Simplify right side
385,595,106.84x = 80,946,694,286,985,088 - Step 5: Solve for x
x = 80,946,694,286,985,088/385,595,106.84 - Step 6: Final answer
x = 209,926,663.62
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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.