Finding the Fourth Proportional to 4,810,979.36, 7,217,302.80 and 1,616,417.12
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Solution
The fourth proportional to 4,810,979.36, 7,217,302.80 and 1,616,417.12 is: 2,424,905.81
Step by Step Solution
- Step 1: Write the proportion equation
4,810,979.36 : 7,217,302.80 = 1,616,417.12 : x - Step 2: Convert to fraction form
4,810,979.36/7,217,302.80 = 1,616,417.12/x - Step 3: Cross multiply
4,810,979.36x = 7,217,302.80 × 1,616,417.12 - Step 4: Simplify right side
4,810,979.36x = 11,666,171,806,143.94 - Step 5: Solve for x
x = 11,666,171,806,143.94/4,810,979.36 - Step 6: Final answer
x = 2,424,905.81
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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.