Finding the Fourth Proportional to 53,243,839.18, 79,655,620.76 and 40,327,198.48
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Solution
The fourth proportional to 53,243,839.18, 79,655,620.76 and 40,327,198.48 is: 60,331,637.95
Step by Step Solution
- Step 1: Write the proportion equation
53,243,839.18 : 79,655,620.76 = 40,327,198.48 : x - Step 2: Convert to fraction form
53,243,839.18/79,655,620.76 = 40,327,198.48/x - Step 3: Cross multiply
53,243,839.18x = 79,655,620.76 × 40,327,198.48 - Step 4: Simplify right side
53,243,839.18x = 3,212,288,028,436,128.50 - Step 5: Solve for x
x = 3,212,288,028,436,128.50/53,243,839.18 - Step 6: Final answer
x = 60,331,637.95
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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.