Finding the Fourth Proportional to 1,228,720,467.21, 1,844,392,261.86 and 529,557,647.19
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Solution
The fourth proportional to 1,228,720,467.21, 1,844,392,261.86 and 529,557,647.19 is: 794,901,731.31
Step by Step Solution
- Step 1: Write the proportion equation
1,228,720,467.21 : 1,844,392,261.86 = 529,557,647.19 : x - Step 2: Convert to fraction form
1,228,720,467.21/1,844,392,261.86 = 529,557,647.19/x - Step 3: Cross multiply
1,228,720,467.21x = 1,844,392,261.86 × 529,557,647.19 - Step 4: Simplify right side
1,228,720,467.21x = 976,712,026,686,023,936 - Step 5: Solve for x
x = 976,712,026,686,023,936/1,228,720,467.21 - Step 6: Final answer
x = 794,901,731.31
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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.