Finding the Fourth Proportional to 90,933,345.98, 125,488,067.80 and 49,117,411.09
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Solution
The fourth proportional to 90,933,345.98, 125,488,067.80 and 49,117,411.09 is: 67,782,054.50
Step by Step Solution
- Step 1: Write the proportion equation
90,933,345.98 : 125,488,067.80 = 49,117,411.09 : x - Step 2: Convert to fraction form
90,933,345.98/125,488,067.80 = 49,117,411.09/x - Step 3: Cross multiply
90,933,345.98x = 125,488,067.80 × 49,117,411.09 - Step 4: Simplify right side
90,933,345.98x = 6,163,649,013,102,629 - Step 5: Solve for x
x = 6,163,649,013,102,629/90,933,345.98 - Step 6: Final answer
x = 67,782,054.50
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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.