Finding the Fourth Proportional to 157,403,504.04, 217,217,125.44 and 87,793,371.70
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Solution
The fourth proportional to 157,403,504.04, 217,217,125.44 and 87,793,371.70 is: 121,155,014.62
Step by Step Solution
- Step 1: Write the proportion equation
157,403,504.04 : 217,217,125.44 = 87,793,371.70 : x - Step 2: Convert to fraction form
157,403,504.04/217,217,125.44 = 87,793,371.70/x - Step 3: Cross multiply
157,403,504.04x = 217,217,125.44 × 87,793,371.70 - Step 4: Simplify right side
157,403,504.04x = 19,070,223,833,359,448 - Step 5: Solve for x
x = 19,070,223,833,359,448/157,403,504.04 - Step 6: Final answer
x = 121,155,014.62
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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.