Finding the Fourth Proportional to 19,409,719.80, 29,114,579.70 and 19,283,748.60
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Solution
The fourth proportional to 19,409,719.80, 29,114,579.70 and 19,283,748.60 is: 28,925,622.90
Step by Step Solution
- Step 1: Write the proportion equation
19,409,719.80 : 29,114,579.70 = 19,283,748.60 : x - Step 2: Convert to fraction form
19,409,719.80/29,114,579.70 = 19,283,748.60/x - Step 3: Cross multiply
19,409,719.80x = 29,114,579.70 × 19,283,748.60 - Step 4: Simplify right side
19,409,719.80x = 561,438,235,529,463.44 - Step 5: Solve for x
x = 561,438,235,529,463.44/19,409,719.80 - Step 6: Final answer
x = 28,925,622.90
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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.