Finding the Fourth Proportional to 489,498,237.36, 734,031,892.84 and 259,413,415.28
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Solution
The fourth proportional to 489,498,237.36, 734,031,892.84 and 259,413,415.28 is: 389,005,936.51
Step by Step Solution
- Step 1: Write the proportion equation
489,498,237.36 : 734,031,892.84 = 259,413,415.28 : x - Step 2: Convert to fraction form
489,498,237.36/734,031,892.84 = 259,413,415.28/x - Step 3: Cross multiply
489,498,237.36x = 734,031,892.84 × 259,413,415.28 - Step 4: Simplify right side
489,498,237.36x = 190,417,720,246,067,392 - Step 5: Solve for x
x = 190,417,720,246,067,392/489,498,237.36 - Step 6: Final answer
x = 389,005,936.51
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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.