Finding the Fourth Proportional to 159,436,938.60, 239,155,407.90 and 51,731,562.60
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Solution
The fourth proportional to 159,436,938.60, 239,155,407.90 and 51,731,562.60 is: 77,597,343.90
Step by Step Solution
- Step 1: Write the proportion equation
159,436,938.60 : 239,155,407.90 = 51,731,562.60 : x - Step 2: Convert to fraction form
159,436,938.60/239,155,407.90 = 51,731,562.60/x - Step 3: Cross multiply
159,436,938.60x = 239,155,407.90 × 51,731,562.60 - Step 4: Simplify right side
159,436,938.60x = 12,371,882,954,907,386 - Step 5: Solve for x
x = 12,371,882,954,907,386/159,436,938.60 - Step 6: Final answer
x = 77,597,343.90
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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.