Finding the Fourth Proportional to 157,306,998.79, 235,961,245.01 and 48,131,996.05
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Solution
The fourth proportional to 157,306,998.79, 235,961,245.01 and 48,131,996.05 is: 72,198,222.58
Step by Step Solution
- Step 1: Write the proportion equation
157,306,998.79 : 235,961,245.01 = 48,131,996.05 : x - Step 2: Convert to fraction form
157,306,998.79/235,961,245.01 = 48,131,996.05/x - Step 3: Cross multiply
157,306,998.79x = 235,961,245.01 × 48,131,996.05 - Step 4: Simplify right side
157,306,998.79x = 11,357,285,712,774,402 - Step 5: Solve for x
x = 11,357,285,712,774,402/157,306,998.79 - Step 6: Final answer
x = 72,198,222.58
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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.