Finding the Fourth Proportional to 55,908,136.20, 83,812,340.70 and 21,821,554.20
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Solution
The fourth proportional to 55,908,136.20, 83,812,340.70 and 21,821,554.20 is: 32,712,868.99
Step by Step Solution
- Step 1: Write the proportion equation
55,908,136.20 : 83,812,340.70 = 21,821,554.20 : x - Step 2: Convert to fraction form
55,908,136.20/83,812,340.70 = 21,821,554.20/x - Step 3: Cross multiply
55,908,136.20x = 83,812,340.70 × 21,821,554.20 - Step 4: Simplify right side
55,908,136.20x = 1,828,915,535,213,916 - Step 5: Solve for x
x = 1,828,915,535,213,916/55,908,136.20 - Step 6: Final answer
x = 32,712,868.99
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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.