Finding the Fourth Proportional to 74,537,602.40, 111,806,403.60 and 19,958,611.70
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Solution
The fourth proportional to 74,537,602.40, 111,806,403.60 and 19,958,611.70 is: 29,937,917.55
Step by Step Solution
- Step 1: Write the proportion equation
74,537,602.40 : 111,806,403.60 = 19,958,611.70 : x - Step 2: Convert to fraction form
74,537,602.40/111,806,403.60 = 19,958,611.70/x - Step 3: Cross multiply
74,537,602.40x = 111,806,403.60 × 19,958,611.70 - Step 4: Simplify right side
74,537,602.40x = 2,231,500,595,025,882 - Step 5: Solve for x
x = 2,231,500,595,025,882/74,537,602.40 - Step 6: Final answer
x = 29,937,917.55
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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.