Finding the Fourth Proportional to 157,403,487.44, 217,217,102.50 and 87,793,355.08
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Solution
The fourth proportional to 157,403,487.44, 217,217,102.50 and 87,793,355.08 is: 121,154,991.67
Step by Step Solution
- Step 1: Write the proportion equation
157,403,487.44 : 217,217,102.50 = 87,793,355.08 : x - Step 2: Convert to fraction form
157,403,487.44/217,217,102.50 = 87,793,355.08/x - Step 3: Cross multiply
157,403,487.44x = 217,217,102.50 × 87,793,355.08 - Step 4: Simplify right side
157,403,487.44x = 19,070,218,209,231,256 - Step 5: Solve for x
x = 19,070,218,209,231,256/157,403,487.44 - Step 6: Final answer
x = 121,154,991.67
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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.