Finding the Fourth Proportional to 13,324,520.14, 18,387,964.56 and 7,817,988.67
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Solution
The fourth proportional to 13,324,520.14, 18,387,964.56 and 7,817,988.67 is: 10,788,898.74
Step by Step Solution
- Step 1: Write the proportion equation
13,324,520.14 : 18,387,964.56 = 7,817,988.67 : x - Step 2: Convert to fraction form
13,324,520.14/18,387,964.56 = 7,817,988.67/x - Step 3: Cross multiply
13,324,520.14x = 18,387,964.56 × 7,817,988.67 - Step 4: Simplify right side
13,324,520.14x = 143,756,898,463,411.78 - Step 5: Solve for x
x = 143,756,898,463,411.78/13,324,520.14 - Step 6: Final answer
x = 10,788,898.74
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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.