Finding the Fourth Proportional to 20,998,206.70, 31,497,310.05 and 5,852,138.20
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Solution
The fourth proportional to 20,998,206.70, 31,497,310.05 and 5,852,138.20 is: 8,778,207.30
Step by Step Solution
- Step 1: Write the proportion equation
20,998,206.70 : 31,497,310.05 = 5,852,138.20 : x - Step 2: Convert to fraction form
20,998,206.70/31,497,310.05 = 5,852,138.20/x - Step 3: Cross multiply
20,998,206.70x = 31,497,310.05 × 5,852,138.20 - Step 4: Simplify right side
20,998,206.70x = 184,326,611,340,848.91 - Step 5: Solve for x
x = 184,326,611,340,848.91/20,998,206.70 - Step 6: Final answer
x = 8,778,207.30
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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.