Finding the Fourth Proportional to 66,313,739.20, 99,441,117.60 and 30,422,948.80
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Solution
The fourth proportional to 66,313,739.20, 99,441,117.60 and 30,422,948.80 is: 45,620,893.44
Step by Step Solution
- Step 1: Write the proportion equation
66,313,739.20 : 99,441,117.60 = 30,422,948.80 : x - Step 2: Convert to fraction form
66,313,739.20/99,441,117.60 = 30,422,948.80/x - Step 3: Cross multiply
66,313,739.20x = 99,441,117.60 × 30,422,948.80 - Step 4: Simplify right side
66,313,739.20x = 3,025,292,029,359,579 - Step 5: Solve for x
x = 3,025,292,029,359,579/66,313,739.20 - Step 6: Final answer
x = 45,620,893.44
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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.