Finding the Fourth Proportional to 77,331,856.80, 115,994,098.80 and 26,208,861.60
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Solution
The fourth proportional to 77,331,856.80, 115,994,098.80 and 26,208,861.60 is: 39,312,043.03
Step by Step Solution
- Step 1: Write the proportion equation
77,331,856.80 : 115,994,098.80 = 26,208,861.60 : x - Step 2: Convert to fraction form
77,331,856.80/115,994,098.80 = 26,208,861.60/x - Step 3: Cross multiply
77,331,856.80x = 115,994,098.80 × 26,208,861.60 - Step 4: Simplify right side
77,331,856.80x = 3,040,073,281,865,926 - Step 5: Solve for x
x = 3,040,073,281,865,926/77,331,856.80 - Step 6: Final answer
x = 39,312,043.03
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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.