Finding the Fourth Proportional to 746,201,874.60, 1,119,302,811.90 and 357,824,791.80
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Solution
The fourth proportional to 746,201,874.60, 1,119,302,811.90 and 357,824,791.80 is: 536,737,187.70
Step by Step Solution
- Step 1: Write the proportion equation
746,201,874.60 : 1,119,302,811.90 = 357,824,791.80 : x - Step 2: Convert to fraction form
746,201,874.60/1,119,302,811.90 = 357,824,791.80/x - Step 3: Cross multiply
746,201,874.60x = 1,119,302,811.90 × 357,824,791.80 - Step 4: Simplify right side
746,201,874.60x = 400,514,295,629,272,128 - Step 5: Solve for x
x = 400,514,295,629,272,128/746,201,874.60 - Step 6: Final answer
x = 536,737,187.70
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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.