Finding the Fourth Proportional to 21,402,452.35, 32,103,678.53 and 13,749,701.95
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Solution
The fourth proportional to 21,402,452.35, 32,103,678.53 and 13,749,701.95 is: 20,624,552.93
Step by Step Solution
- Step 1: Write the proportion equation
21,402,452.35 : 32,103,678.53 = 13,749,701.95 : x - Step 2: Convert to fraction form
21,402,452.35/32,103,678.53 = 13,749,701.95/x - Step 3: Cross multiply
21,402,452.35x = 32,103,678.53 × 13,749,701.95 - Step 4: Simplify right side
21,402,452.35x = 441,416,011,217,365.56 - Step 5: Solve for x
x = 441,416,011,217,365.56/21,402,452.35 - Step 6: Final answer
x = 20,624,552.93
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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.