Finding the Fourth Proportional to 20,252,440.08, 27,952,351.20 and 15,349,109.58
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Solution
The fourth proportional to 20,252,440.08, 27,952,351.20 and 15,349,109.58 is: 21,184,790.57
Step by Step Solution
- Step 1: Write the proportion equation
20,252,440.08 : 27,952,351.20 = 15,349,109.58 : x - Step 2: Convert to fraction form
20,252,440.08/27,952,351.20 = 15,349,109.58/x - Step 3: Cross multiply
20,252,440.08x = 27,952,351.20 × 15,349,109.58 - Step 4: Simplify right side
20,252,440.08x = 429,043,701,587,444.50 - Step 5: Solve for x
x = 429,043,701,587,444.50/20,252,440.08 - Step 6: Final answer
x = 21,184,790.57
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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.