Finding the Fourth Proportional to 15,568,390.84, 21,484,251.03 and 8,503,989.89
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Solution
The fourth proportional to 15,568,390.84, 21,484,251.03 and 8,503,989.89 is: 11,735,435.95
Step by Step Solution
- Step 1: Write the proportion equation
15,568,390.84 : 21,484,251.03 = 8,503,989.89 : x - Step 2: Convert to fraction form
15,568,390.84/21,484,251.03 = 8,503,989.89/x - Step 3: Cross multiply
15,568,390.84x = 21,484,251.03 × 8,503,989.89 - Step 4: Simplify right side
15,568,390.84x = 182,701,853,553,342.12 - Step 5: Solve for x
x = 182,701,853,553,342.12/15,568,390.84 - Step 6: Final answer
x = 11,735,435.95
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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.