Finding the Fourth Proportional to 66,428,874.70, 99,643,312.05 and 49,422,762.70
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Solution
The fourth proportional to 66,428,874.70, 99,643,312.05 and 49,422,762.70 is: 74,134,144.05
Step by Step Solution
- Step 1: Write the proportion equation
66,428,874.70 : 99,643,312.05 = 49,422,762.70 : x - Step 2: Convert to fraction form
66,428,874.70/99,643,312.05 = 49,422,762.70/x - Step 3: Cross multiply
66,428,874.70x = 99,643,312.05 × 49,422,762.70 - Step 4: Simplify right side
66,428,874.70x = 4,924,647,766,089,201 - Step 5: Solve for x
x = 4,924,647,766,089,201/66,428,874.70 - Step 6: Final answer
x = 74,134,144.05
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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.