Finding the Fourth Proportional to 27,479,684.84, 37,920,484.10 and 15,255,754.28
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Solution
The fourth proportional to 27,479,684.84, 37,920,484.10 and 15,255,754.28 is: 21,052,118.72
Step by Step Solution
- Step 1: Write the proportion equation
27,479,684.84 : 37,920,484.10 = 15,255,754.28 : x - Step 2: Convert to fraction form
27,479,684.84/37,920,484.10 = 15,255,754.28/x - Step 3: Cross multiply
27,479,684.84x = 37,920,484.10 × 15,255,754.28 - Step 4: Simplify right side
27,479,684.84x = 578,505,587,608,247 - Step 5: Solve for x
x = 578,505,587,608,247/27,479,684.84 - Step 6: Final answer
x = 21,052,118.72
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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.