Finding the Fourth Proportional to 53,243,819.40, 79,655,591.20 and 40,327,178.70
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Solution
The fourth proportional to 53,243,819.40, 79,655,591.20 and 40,327,178.70 is: 60,331,608.38
Step by Step Solution
- Step 1: Write the proportion equation
53,243,819.40 : 79,655,591.20 = 40,327,178.70 : x - Step 2: Convert to fraction form
53,243,819.40/79,655,591.20 = 40,327,178.70/x - Step 3: Cross multiply
53,243,819.40x = 79,655,591.20 × 40,327,178.70 - Step 4: Simplify right side
53,243,819.40x = 3,212,285,260,776,548 - Step 5: Solve for x
x = 3,212,285,260,776,548/53,243,819.40 - Step 6: Final answer
x = 60,331,608.38
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.