Finding the Fourth Proportional to 4,914,225.20, 7,371,337.80 and 2,788,461.20
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Solution
The fourth proportional to 4,914,225.20, 7,371,337.80 and 2,788,461.20 is: 4,182,691.80
Step by Step Solution
- Step 1: Write the proportion equation
4,914,225.20 : 7,371,337.80 = 2,788,461.20 : x - Step 2: Convert to fraction form
4,914,225.20/7,371,337.80 = 2,788,461.20/x - Step 3: Cross multiply
4,914,225.20x = 7,371,337.80 × 2,788,461.20 - Step 4: Simplify right side
4,914,225.20x = 20,554,689,447,393.36 - Step 5: Solve for x
x = 20,554,689,447,393.36/4,914,225.20 - Step 6: Final answer
x = 4,182,691.80
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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.