Finding the Fourth Proportional to 298,571,876.96, 412,031,102.80 and 166,421,252.92
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Solution
The fourth proportional to 298,571,876.96, 412,031,102.80 and 166,421,252.92 is: 229,662,395.09
Step by Step Solution
- Step 1: Write the proportion equation
298,571,876.96 : 412,031,102.80 = 166,421,252.92 : x - Step 2: Convert to fraction form
298,571,876.96/412,031,102.80 = 166,421,252.92/x - Step 3: Cross multiply
298,571,876.96x = 412,031,102.80 × 166,421,252.92 - Step 4: Simplify right side
298,571,876.96x = 68,570,732,369,985,320 - Step 5: Solve for x
x = 68,570,732,369,985,320/298,571,876.96 - Step 6: Final answer
x = 229,662,395.09
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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.