Finding the Fourth Proportional to 928,858,651.69, 1,281,825,148.56 and 511,170,936.99
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Solution
The fourth proportional to 928,858,651.69, 1,281,825,148.56 and 511,170,936.99 is: 705,416,008.19
Step by Step Solution
- Step 1: Write the proportion equation
928,858,651.69 : 1,281,825,148.56 = 511,170,936.99 : x - Step 2: Convert to fraction form
928,858,651.69/1,281,825,148.56 = 511,170,936.99/x - Step 3: Cross multiply
928,858,651.69x = 1,281,825,148.56 × 511,170,936.99 - Step 4: Simplify right side
928,858,651.69x = 655,231,762,246,761,088 - Step 5: Solve for x
x = 655,231,762,246,761,088/928,858,651.69 - Step 6: Final answer
x = 705,416,008.19
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.