Finding the Fourth Proportional to 199,345,708.60, 299,018,562.90 and 122,419,295.80
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Solution
The fourth proportional to 199,345,708.60, 299,018,562.90 and 122,419,295.80 is: 183,628,943.70
Step by Step Solution
- Step 1: Write the proportion equation
199,345,708.60 : 299,018,562.90 = 122,419,295.80 : x - Step 2: Convert to fraction form
199,345,708.60/299,018,562.90 = 122,419,295.80/x - Step 3: Cross multiply
199,345,708.60x = 299,018,562.90 × 122,419,295.80 - Step 4: Simplify right side
199,345,708.60x = 36,605,641,901,346,000 - Step 5: Solve for x
x = 36,605,641,901,346,000/199,345,708.60 - Step 6: Final answer
x = 183,628,943.70
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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.