Finding the Fourth Proportional to 20,494,688.64, 30,747,417.11 and 7,365,432.11
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Solution
The fourth proportional to 20,494,688.64, 30,747,417.11 and 7,365,432.11 is: 11,050,083.12
Step by Step Solution
- Step 1: Write the proportion equation
20,494,688.64 : 30,747,417.11 = 7,365,432.11 : x - Step 2: Convert to fraction form
20,494,688.64/30,747,417.11 = 7,365,432.11/x - Step 3: Cross multiply
20,494,688.64x = 30,747,417.11 × 7,365,432.11 - Step 4: Simplify right side
20,494,688.64x = 226,468,013,090,993.19 - Step 5: Solve for x
x = 226,468,013,090,993.19/20,494,688.64 - Step 6: Final answer
x = 11,050,083.12
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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.