Finding the Fourth Proportional to 103,601,496.24, 142,966,317.60 and 57,190,753.68
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Solution
The fourth proportional to 103,601,496.24, 142,966,317.60 and 57,190,753.68 is: 78,921,171.52
Step by Step Solution
- Step 1: Write the proportion equation
103,601,496.24 : 142,966,317.60 = 57,190,753.68 : x - Step 2: Convert to fraction form
103,601,496.24/142,966,317.60 = 57,190,753.68/x - Step 3: Cross multiply
103,601,496.24x = 142,966,317.60 × 57,190,753.68 - Step 4: Simplify right side
103,601,496.24x = 8,176,351,454,398,248 - Step 5: Solve for x
x = 8,176,351,454,398,248/103,601,496.24 - Step 6: Final answer
x = 78,921,171.52
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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.