Finding the Fourth Proportional to 29,220,437.70, 40,306,634.58 and 19,297,411.80
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Solution
The fourth proportional to 29,220,437.70, 40,306,634.58 and 19,297,411.80 is: 26,618,825.28
Step by Step Solution
- Step 1: Write the proportion equation
29,220,437.70 : 40,306,634.58 = 19,297,411.80 : x - Step 2: Convert to fraction form
29,220,437.70/40,306,634.58 = 19,297,411.80/x - Step 3: Cross multiply
29,220,437.70x = 40,306,634.58 × 19,297,411.80 - Step 4: Simplify right side
29,220,437.70x = 777,813,725,762,380 - Step 5: Solve for x
x = 777,813,725,762,380/29,220,437.70 - Step 6: Final answer
x = 26,618,825.28
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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.