Finding the Fourth Proportional to 74,861,609.70, 112,292,414.55 and 18,127,913.70
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Solution
The fourth proportional to 74,861,609.70, 112,292,414.55 and 18,127,913.70 is: 27,191,870.55
Step by Step Solution
- Step 1: Write the proportion equation
74,861,609.70 : 112,292,414.55 = 18,127,913.70 : x - Step 2: Convert to fraction form
74,861,609.70/112,292,414.55 = 18,127,913.70/x - Step 3: Cross multiply
74,861,609.70x = 112,292,414.55 × 18,127,913.70 - Step 4: Simplify right side
74,861,609.70x = 2,035,627,200,127,024.25 - Step 5: Solve for x
x = 2,035,627,200,127,024.25/74,861,609.70 - Step 6: Final answer
x = 27,191,870.55
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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.