Finding the Fourth Proportional to 55,636,928.63, 76,777,817.74 and 30,853,116.08
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Solution
The fourth proportional to 55,636,928.63, 76,777,817.74 and 30,853,116.08 is: 42,576,665.92
Step by Step Solution
- Step 1: Write the proportion equation
55,636,928.63 : 76,777,817.74 = 30,853,116.08 : x - Step 2: Convert to fraction form
55,636,928.63/76,777,817.74 = 30,853,116.08/x - Step 3: Cross multiply
55,636,928.63x = 76,777,817.74 × 30,853,116.08 - Step 4: Simplify right side
55,636,928.63x = 2,368,834,922,640,281 - Step 5: Solve for x
x = 2,368,834,922,640,281/55,636,928.63 - Step 6: Final answer
x = 42,576,665.92
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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.