Finding the Fourth Proportional to 20,238,080.60, 27,929,213.16 and 11,536,095.08
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Solution
The fourth proportional to 20,238,080.60, 27,929,213.16 and 11,536,095.08 is: 15,920,188.52
Step by Step Solution
- Step 1: Write the proportion equation
20,238,080.60 : 27,929,213.16 = 11,536,095.08 : x - Step 2: Convert to fraction form
20,238,080.60/27,929,213.16 = 11,536,095.08/x - Step 3: Cross multiply
20,238,080.60x = 27,929,213.16 × 11,536,095.08 - Step 4: Simplify right side
20,238,080.60x = 322,194,058,523,347.25 - Step 5: Solve for x
x = 322,194,058,523,347.25/20,238,080.60 - Step 6: Final answer
x = 15,920,188.52
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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.