Finding the Fourth Proportional to 76,622,921.84, 105,741,871.80 and 41,817,846.08
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Solution
The fourth proportional to 76,622,921.84, 105,741,871.80 and 41,817,846.08 is: 57,709,849.91
Step by Step Solution
- Step 1: Write the proportion equation
76,622,921.84 : 105,741,871.80 = 41,817,846.08 : x - Step 2: Convert to fraction form
76,622,921.84/105,741,871.80 = 41,817,846.08/x - Step 3: Cross multiply
76,622,921.84x = 105,741,871.80 × 41,817,846.08 - Step 4: Simplify right side
76,622,921.84x = 4,421,897,319,143,492 - Step 5: Solve for x
x = 4,421,897,319,143,492/76,622,921.84 - Step 6: Final answer
x = 57,709,849.91
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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.