Finding the Fourth Proportional to 13,324,519.64, 18,387,963.86 and 7,817,988.17
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Solution
The fourth proportional to 13,324,519.64, 18,387,963.86 and 7,817,988.17 is: 10,788,898.05
Step by Step Solution
- Step 1: Write the proportion equation
13,324,519.64 : 18,387,963.86 = 7,817,988.17 : x - Step 2: Convert to fraction form
13,324,519.64/18,387,963.86 = 7,817,988.17/x - Step 3: Cross multiply
13,324,519.64x = 18,387,963.86 × 7,817,988.17 - Step 4: Simplify right side
13,324,519.64x = 143,756,883,855,472.69 - Step 5: Solve for x
x = 143,756,883,855,472.69/13,324,519.64 - Step 6: Final answer
x = 10,788,898.05
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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.