Finding the Fourth Proportional to 5,641,541.20, 8,461,447.80 and 1,855,032.40
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Solution
The fourth proportional to 5,641,541.20, 8,461,447.80 and 1,855,032.40 is: 2,782,264.50
Step by Step Solution
- Step 1: Write the proportion equation
5,641,541.20 : 8,461,447.80 = 1,855,032.40 : x - Step 2: Convert to fraction form
5,641,541.20/8,461,447.80 = 1,855,032.40/x - Step 3: Cross multiply
5,641,541.20x = 8,461,447.80 × 1,855,032.40 - Step 4: Simplify right side
5,641,541.20x = 15,696,259,819,908.72 - Step 5: Solve for x
x = 15,696,259,819,908.72/5,641,541.20 - Step 6: Final answer
x = 2,782,264.50
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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.