Finding the Fourth Proportional to 1,425,451,085.36, 2,138,338,055.28 and 1,278,984,617.12
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Solution
The fourth proportional to 1,425,451,085.36, 2,138,338,055.28 and 1,278,984,617.12 is: 1,918,621,766.12
Step by Step Solution
- Step 1: Write the proportion equation
1,425,451,085.36 : 2,138,338,055.28 = 1,278,984,617.12 : x - Step 2: Convert to fraction form
1,425,451,085.36/2,138,338,055.28 = 1,278,984,617.12/x - Step 3: Cross multiply
1,425,451,085.36x = 2,138,338,055.28 × 1,278,984,617.12 - Step 4: Simplify right side
1,425,451,085.36x = 2,734,901,478,905,415,680 - Step 5: Solve for x
x = 2,734,901,478,905,415,680/1,425,451,085.36 - Step 6: Final answer
x = 1,918,621,766.12
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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.