Finding the Fourth Proportional to 399,528,067.60, 599,292,101.40 and 126,926,390.80
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Solution
The fourth proportional to 399,528,067.60, 599,292,101.40 and 126,926,390.80 is: 190,389,586.20
Step by Step Solution
- Step 1: Write the proportion equation
399,528,067.60 : 599,292,101.40 = 126,926,390.80 : x - Step 2: Convert to fraction form
399,528,067.60/599,292,101.40 = 126,926,390.80/x - Step 3: Cross multiply
399,528,067.60x = 599,292,101.40 × 126,926,390.80 - Step 4: Simplify right side
399,528,067.60x = 76,065,983,465,649,616 - Step 5: Solve for x
x = 76,065,983,465,649,616/399,528,067.60 - Step 6: Final answer
x = 190,389,586.20
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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.