Finding the Fourth Proportional to 756,769,246.80, 1,135,153,870.20 and 739,763,134.80
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Solution
The fourth proportional to 756,769,246.80, 1,135,153,870.20 and 739,763,134.80 is: 1,109,644,702.20
Step by Step Solution
- Step 1: Write the proportion equation
756,769,246.80 : 1,135,153,870.20 = 739,763,134.80 : x - Step 2: Convert to fraction form
756,769,246.80/1,135,153,870.20 = 739,763,134.80/x - Step 3: Cross multiply
756,769,246.80x = 1,135,153,870.20 × 739,763,134.80 - Step 4: Simplify right side
756,769,246.80x = 839,744,985,499,504,256 - Step 5: Solve for x
x = 839,744,985,499,504,256/756,769,246.80 - Step 6: Final answer
x = 1,109,644,702.20
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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.