Finding the Fourth Proportional to 1,303,435,687.11, 1,956,022,871.97 and 474,389,098.84
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Solution
The fourth proportional to 1,303,435,687.11, 1,956,022,871.97 and 474,389,098.84 is: 711,900,047.49
Step by Step Solution
- Step 1: Write the proportion equation
1,303,435,687.11 : 1,956,022,871.97 = 474,389,098.84 : x - Step 2: Convert to fraction form
1,303,435,687.11/1,956,022,871.97 = 474,389,098.84/x - Step 3: Cross multiply
1,303,435,687.11x = 1,956,022,871.97 × 474,389,098.84 - Step 4: Simplify right side
1,303,435,687.11x = 927,915,927,545,820,672 - Step 5: Solve for x
x = 927,915,927,545,820,672/1,303,435,687.11 - Step 6: Final answer
x = 711,900,047.49
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Double scale
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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.