Finding the Fourth Proportional to 13,553,588.76, 18,703,849.17 and 7,358,512.74
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Solution
The fourth proportional to 13,553,588.76, 18,703,849.17 and 7,358,512.74 is: 10,154,691.49
Step by Step Solution
- Step 1: Write the proportion equation
13,553,588.76 : 18,703,849.17 = 7,358,512.74 : x - Step 2: Convert to fraction form
13,553,588.76/18,703,849.17 = 7,358,512.74/x - Step 3: Cross multiply
13,553,588.76x = 18,703,849.17 × 7,358,512.74 - Step 4: Simplify right side
13,553,588.76x = 137,632,512,404,483.44 - Step 5: Solve for x
x = 137,632,512,404,483.44/13,553,588.76 - Step 6: Final answer
x = 10,154,691.49
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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.