Finding the Fourth Proportional to 20,234,880.78, 30,347,972.38 and 6,402,935.62
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Solution
The fourth proportional to 20,234,880.78, 30,347,972.38 and 6,402,935.62 is: 9,603,027.34
Step by Step Solution
- Step 1: Write the proportion equation
20,234,880.78 : 30,347,972.38 = 6,402,935.62 : x - Step 2: Convert to fraction form
20,234,880.78/30,347,972.38 = 6,402,935.62/x - Step 3: Cross multiply
20,234,880.78x = 30,347,972.38 × 6,402,935.62 - Step 4: Simplify right side
20,234,880.78x = 194,316,113,346,678.19 - Step 5: Solve for x
x = 194,316,113,346,678.19/20,234,880.78 - Step 6: Final answer
x = 9,603,027.34
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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.