Finding the Fourth Proportional to 929,100,548.80, 1,393,650,823.20 and 515,852,027.20
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Solution
The fourth proportional to 929,100,548.80, 1,393,650,823.20 and 515,852,027.20 is: 773,778,040.80
Step by Step Solution
- Step 1: Write the proportion equation
929,100,548.80 : 1,393,650,823.20 = 515,852,027.20 : x - Step 2: Convert to fraction form
929,100,548.80/1,393,650,823.20 = 515,852,027.20/x - Step 3: Cross multiply
929,100,548.80x = 1,393,650,823.20 × 515,852,027.20 - Step 4: Simplify right side
929,100,548.80x = 718,917,602,356,668,800 - Step 5: Solve for x
x = 718,917,602,356,668,800/929,100,548.80 - Step 6: Final answer
x = 773,778,040.80
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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.