Finding the Fourth Proportional to 1,268,412,173,680.20, 1,750,445,969,717.20 and 690,386,131,099.36
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Solution
The fourth proportional to 1,268,412,173,680.20, 1,750,445,969,717.20 and 690,386,131,099.36 is: 952,753,092,258.02
Step by Step Solution
- Step 1: Write the proportion equation
1,268,412,173,680.20 : 1,750,445,969,717.20 = 690,386,131,099.36 : x - Step 2: Convert to fraction form
1,268,412,173,680.20/1,750,445,969,717.20 = 690,386,131,099.36/x - Step 3: Cross multiply
1,268,412,173,680.20x = 1,750,445,969,717.20 × 690,386,131,099.36 - Step 4: Simplify right side
1,268,412,173,680.20x = 1,208,483,620,731,525,181,472,768 - Step 5: Solve for x
x = 1,208,483,620,731,525,181,472,768/1,268,412,173,680.20 - Step 6: Final answer
x = 952,753,092,258.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.