Finding the Fourth Proportional to 738,289,439.10, 1,107,434,158.65 and 618,252,882.30
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Solution
The fourth proportional to 738,289,439.10, 1,107,434,158.65 and 618,252,882.30 is: 927,379,323.45
Step by Step Solution
- Step 1: Write the proportion equation
738,289,439.10 : 1,107,434,158.65 = 618,252,882.30 : x - Step 2: Convert to fraction form
738,289,439.10/1,107,434,158.65 = 618,252,882.30/x - Step 3: Cross multiply
738,289,439.10x = 1,107,434,158.65 × 618,252,882.30 - Step 4: Simplify right side
738,289,439.10x = 684,674,360,542,838,016 - Step 5: Solve for x
x = 684,674,360,542,838,016/738,289,439.10 - Step 6: Final answer
x = 927,379,323.45
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Double scale
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Similar ratio
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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.