Finding the Fourth Proportional to 20,998,210.70, 31,497,316.05 and 5,852,142.20
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Solution
The fourth proportional to 20,998,210.70, 31,497,316.05 and 5,852,142.20 is: 8,778,213.30
Step by Step Solution
- Step 1: Write the proportion equation
20,998,210.70 : 31,497,316.05 = 5,852,142.20 : x - Step 2: Convert to fraction form
20,998,210.70/31,497,316.05 = 5,852,142.20/x - Step 3: Cross multiply
20,998,210.70x = 31,497,316.05 × 5,852,142.20 - Step 4: Simplify right side
20,998,210.70x = 184,326,772,442,942.31 - Step 5: Solve for x
x = 184,326,772,442,942.31/20,998,210.70 - Step 6: Final answer
x = 8,778,213.30
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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.