Finding the Fourth Proportional to 1,226,354,629.60, 1,836,508,635.60 and 815,184,632.80
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Solution
The fourth proportional to 1,226,354,629.60, 1,836,508,635.60 and 815,184,632.80 is: 1,220,767,289.99
Step by Step Solution
- Step 1: Write the proportion equation
1,226,354,629.60 : 1,836,508,635.60 = 815,184,632.80 : x - Step 2: Convert to fraction form
1,226,354,629.60/1,836,508,635.60 = 815,184,632.80/x - Step 3: Cross multiply
1,226,354,629.60x = 1,836,508,635.60 × 815,184,632.80 - Step 4: Simplify right side
1,226,354,629.60x = 1,497,093,617,745,614,848 - Step 5: Solve for x
x = 1,497,093,617,745,614,848/1,226,354,629.60 - Step 6: Final answer
x = 1,220,767,289.99
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1.5x scale
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.