Finding the Fourth Proportional to 19,581,964.17, 29,362,809.20 and 8,789,972.10
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Solution
The fourth proportional to 19,581,964.17, 29,362,809.20 and 8,789,972.10 is: 13,180,407.82
Step by Step Solution
- Step 1: Write the proportion equation
19,581,964.17 : 29,362,809.20 = 8,789,972.10 : x - Step 2: Convert to fraction form
19,581,964.17/29,362,809.20 = 8,789,972.10/x - Step 3: Cross multiply
19,581,964.17x = 29,362,809.20 × 8,789,972.10 - Step 4: Simplify right side
19,581,964.17x = 258,098,273,601,673.44 - Step 5: Solve for x
x = 258,098,273,601,673.44/19,581,964.17 - Step 6: Final answer
x = 13,180,407.82
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1.5x scale
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.