Finding the Fourth Proportional to 1,511,508,767.20, 2,267,263,150.80 and 1,425,415,325.20
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Solution
The fourth proportional to 1,511,508,767.20, 2,267,263,150.80 and 1,425,415,325.20 is: 2,138,122,987.80
Step by Step Solution
- Step 1: Write the proportion equation
1,511,508,767.20 : 2,267,263,150.80 = 1,425,415,325.20 : x - Step 2: Convert to fraction form
1,511,508,767.20/2,267,263,150.80 = 1,425,415,325.20/x - Step 3: Cross multiply
1,511,508,767.20x = 2,267,263,150.80 × 1,425,415,325.20 - Step 4: Simplify right side
1,511,508,767.20x = 3,231,791,641,411,558,912 - Step 5: Solve for x
x = 3,231,791,641,411,558,912/1,511,508,767.20 - Step 6: Final answer
x = 2,138,122,987.80
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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.