Finding the Fourth Proportional to 13,444,862.70, 20,143,237.05 and 8,177,108.70
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Solution
The fourth proportional to 13,444,862.70, 20,143,237.05 and 8,177,108.70 is: 12,251,031.68
Step by Step Solution
- Step 1: Write the proportion equation
13,444,862.70 : 20,143,237.05 = 8,177,108.70 : x - Step 2: Convert to fraction form
13,444,862.70/20,143,237.05 = 8,177,108.70/x - Step 3: Cross multiply
13,444,862.70x = 20,143,237.05 × 8,177,108.70 - Step 4: Simplify right side
13,444,862.70x = 164,713,438,927,717.34 - Step 5: Solve for x
x = 164,713,438,927,717.34/13,444,862.70 - Step 6: Final answer
x = 12,251,031.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.