Finding the Fourth Proportional to 13,316,423.20, 18,376,664 and 7,204,851.68
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Solution
The fourth proportional to 13,316,423.20, 18,376,664 and 7,204,851.68 is: 9,942,695.31
Step by Step Solution
- Step 1: Write the proportion equation
13,316,423.20 : 18,376,664 = 7,204,851.68 : x - Step 2: Convert to fraction form
13,316,423.20/18,376,664 = 7,204,851.68/x - Step 3: Cross multiply
13,316,423.20x = 18,376,664 × 7,204,851.68 - Step 4: Simplify right side
13,316,423.20x = 132,401,138,493,195.52 - Step 5: Solve for x
x = 132,401,138,493,195.52/13,316,423.20 - Step 6: Final answer
x = 9,942,695.31
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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.