Finding the Fourth Proportional to 399,528,029.10, 599,292,043.65 and 126,926,352.30
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Solution
The fourth proportional to 399,528,029.10, 599,292,043.65 and 126,926,352.30 is: 190,389,528.45
Step by Step Solution
- Step 1: Write the proportion equation
399,528,029.10 : 599,292,043.65 = 126,926,352.30 : x - Step 2: Convert to fraction form
399,528,029.10/599,292,043.65 = 126,926,352.30/x - Step 3: Cross multiply
399,528,029.10x = 599,292,043.65 × 126,926,352.30 - Step 4: Simplify right side
399,528,029.10x = 76,065,953,062,906,880 - Step 5: Solve for x
x = 76,065,953,062,906,880/399,528,029.10 - Step 6: Final answer
x = 190,389,528.45
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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.