Finding the Fourth Proportional to 369,989,815.96, 555,018,839.09 and 120,996,364.88
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Solution
The fourth proportional to 369,989,815.96, 555,018,839.09 and 120,996,364.88 is: 181,505,703.87
Step by Step Solution
- Step 1: Write the proportion equation
369,989,815.96 : 555,018,839.09 = 120,996,364.88 : x - Step 2: Convert to fraction form
369,989,815.96/555,018,839.09 = 120,996,364.88/x - Step 3: Cross multiply
369,989,815.96x = 555,018,839.09 × 120,996,364.88 - Step 4: Simplify right side
369,989,815.96x = 67,155,261,969,807,648 - Step 5: Solve for x
x = 67,155,261,969,807,648/369,989,815.96 - Step 6: Final answer
x = 181,505,703.87
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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.