Finding the Fourth Proportional to 756,775,703.80, 1,135,163,555.70 and 348,629,015.80
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Solution
The fourth proportional to 756,775,703.80, 1,135,163,555.70 and 348,629,015.80 is: 522,943,523.70
Step by Step Solution
- Step 1: Write the proportion equation
756,775,703.80 : 1,135,163,555.70 = 348,629,015.80 : x - Step 2: Convert to fraction form
756,775,703.80/1,135,163,555.70 = 348,629,015.80/x - Step 3: Cross multiply
756,775,703.80x = 1,135,163,555.70 × 348,629,015.80 - Step 4: Simplify right side
756,775,703.80x = 395,750,953,195,719,488 - Step 5: Solve for x
x = 395,750,953,195,719,488/756,775,703.80 - Step 6: Final answer
x = 522,943,523.70
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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.