Finding the Fourth Proportional to 512,487,036.80, 768,730,555.20 and 236,137,716.80
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Solution
The fourth proportional to 512,487,036.80, 768,730,555.20 and 236,137,716.80 is: 354,206,575.20
Step by Step Solution
- Step 1: Write the proportion equation
512,487,036.80 : 768,730,555.20 = 236,137,716.80 : x - Step 2: Convert to fraction form
512,487,036.80/768,730,555.20 = 236,137,716.80/x - Step 3: Cross multiply
512,487,036.80x = 768,730,555.20 × 236,137,716.80 - Step 4: Simplify right side
512,487,036.80x = 181,526,278,139,324,384 - Step 5: Solve for x
x = 181,526,278,139,324,384/512,487,036.80 - Step 6: Final answer
x = 354,206,575.20
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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.