Finding the Fourth Proportional to 1,293,088,523.40, 1,939,632,785.10 and 776,102,718.60
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Solution
The fourth proportional to 1,293,088,523.40, 1,939,632,785.10 and 776,102,718.60 is: 1,164,154,077.90
Step by Step Solution
- Step 1: Write the proportion equation
1,293,088,523.40 : 1,939,632,785.10 = 776,102,718.60 : x - Step 2: Convert to fraction form
1,293,088,523.40/1,939,632,785.10 = 776,102,718.60/x - Step 3: Cross multiply
1,293,088,523.40x = 1,939,632,785.10 × 776,102,718.60 - Step 4: Simplify right side
1,293,088,523.40x = 1,505,354,277,601,799,424 - Step 5: Solve for x
x = 1,505,354,277,601,799,424/1,293,088,523.40 - Step 6: Final answer
x = 1,164,154,077.90
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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.