Finding the Fourth Proportional to 839,232,014.70, 1,258,848,022.05 and 823,107,701.10
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Solution
The fourth proportional to 839,232,014.70, 1,258,848,022.05 and 823,107,701.10 is: 1,234,661,551.65
Step by Step Solution
- Step 1: Write the proportion equation
839,232,014.70 : 1,258,848,022.05 = 823,107,701.10 : x - Step 2: Convert to fraction form
839,232,014.70/1,258,848,022.05 = 823,107,701.10/x - Step 3: Cross multiply
839,232,014.70x = 1,258,848,022.05 × 823,107,701.10 - Step 4: Simplify right side
839,232,014.70x = 1,036,167,501,463,857,664 - Step 5: Solve for x
x = 1,036,167,501,463,857,664/839,232,014.70 - Step 6: Final answer
x = 1,234,661,551.65
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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.