Finding the Fourth Proportional to 51,135,019.95, 70,565,861.70 and 27,930,140.76
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Solution
The fourth proportional to 51,135,019.95, 70,565,861.70 and 27,930,140.76 is: 38,543,339.81
Step by Step Solution
- Step 1: Write the proportion equation
51,135,019.95 : 70,565,861.70 = 27,930,140.76 : x - Step 2: Convert to fraction form
51,135,019.95/70,565,861.70 = 27,930,140.76/x - Step 3: Cross multiply
51,135,019.95x = 70,565,861.70 × 27,930,140.76 - Step 4: Simplify right side
51,135,019.95x = 1,970,914,450,131,693 - Step 5: Solve for x
x = 1,970,914,450,131,693/51,135,019.95 - Step 6: Final answer
x = 38,543,339.81
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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.