Finding the Fourth Proportional to 340,062,400.20, 508,917,869.10 and 203,845,542.60
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Solution
The fourth proportional to 340,062,400.20, 508,917,869.10 and 203,845,542.60 is: 305,063,538.65
Step by Step Solution
- Step 1: Write the proportion equation
340,062,400.20 : 508,917,869.10 = 203,845,542.60 : x - Step 2: Convert to fraction form
340,062,400.20/508,917,869.10 = 203,845,542.60/x - Step 3: Cross multiply
340,062,400.20x = 508,917,869.10 × 203,845,542.60 - Step 4: Simplify right side
340,062,400.20x = 103,740,639,165,525,280 - Step 5: Solve for x
x = 103,740,639,165,525,280/340,062,400.20 - Step 6: Final answer
x = 305,063,538.65
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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.