Finding the Fourth Proportional to 22,238,289.41, 30,689,480.34 and 12,448,675.98
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Solution
The fourth proportional to 22,238,289.41, 30,689,480.34 and 12,448,675.98 is: 17,179,531.65
Step by Step Solution
- Step 1: Write the proportion equation
22,238,289.41 : 30,689,480.34 = 12,448,675.98 : x - Step 2: Convert to fraction form
22,238,289.41/30,689,480.34 = 12,448,675.98/x - Step 3: Cross multiply
22,238,289.41x = 30,689,480.34 × 12,448,675.98 - Step 4: Simplify right side
22,238,289.41x = 382,043,396,747,240.25 - Step 5: Solve for x
x = 382,043,396,747,240.25/22,238,289.41 - Step 6: Final answer
x = 17,179,531.65
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1.5x scale
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.