Finding the Fourth Proportional to 90,811,305.42, 125,319,566.94 and 49,558,197.84
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Solution
The fourth proportional to 90,811,305.42, 125,319,566.94 and 49,558,197.84 is: 68,390,294.17
Step by Step Solution
- Step 1: Write the proportion equation
90,811,305.42 : 125,319,566.94 = 49,558,197.84 : x - Step 2: Convert to fraction form
90,811,305.42/125,319,566.94 = 49,558,197.84/x - Step 3: Cross multiply
90,811,305.42x = 125,319,566.94 × 49,558,197.84 - Step 4: Simplify right side
90,811,305.42x = 6,210,611,891,635,644 - Step 5: Solve for x
x = 6,210,611,891,635,644/90,811,305.42 - Step 6: Final answer
x = 68,390,294.17
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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.