Finding the Fourth Proportional to 18,819,031.52, 25,960,688.16 and 12,296,474.08
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Solution
The fourth proportional to 18,819,031.52, 25,960,688.16 and 12,296,474.08 is: 16,962,877.64
Step by Step Solution
- Step 1: Write the proportion equation
18,819,031.52 : 25,960,688.16 = 12,296,474.08 : x - Step 2: Convert to fraction form
18,819,031.52/25,960,688.16 = 12,296,474.08/x - Step 3: Cross multiply
18,819,031.52x = 25,960,688.16 × 12,296,474.08 - Step 4: Simplify right side
18,819,031.52x = 319,224,929,058,402.88 - Step 5: Solve for x
x = 319,224,929,058,402.88/18,819,031.52 - Step 6: Final answer
x = 16,962,877.64
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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.