Finding the Fourth Proportional to 74,848,772.46, 103,392,403.56 and 56,403,340.92
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Solution
The fourth proportional to 74,848,772.46, 103,392,403.56 and 56,403,340.92 is: 77,912,793.96
Step by Step Solution
- Step 1: Write the proportion equation
74,848,772.46 : 103,392,403.56 = 56,403,340.92 : x - Step 2: Convert to fraction form
74,848,772.46/103,392,403.56 = 56,403,340.92/x - Step 3: Cross multiply
74,848,772.46x = 103,392,403.56 × 56,403,340.92 - Step 4: Simplify right side
74,848,772.46x = 5,831,676,986,532,902 - Step 5: Solve for x
x = 5,831,676,986,532,902/74,848,772.46 - Step 6: Final answer
x = 77,912,793.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.