Finding the Fourth Proportional to 21,127,357.77, 31,695,583.26 and 6,553,986.81
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Solution
The fourth proportional to 21,127,357.77, 31,695,583.26 and 6,553,986.81 is: 9,832,390.63
Step by Step Solution
- Step 1: Write the proportion equation
21,127,357.77 : 31,695,583.26 = 6,553,986.81 : x - Step 2: Convert to fraction form
21,127,357.77/31,695,583.26 = 6,553,986.81/x - Step 3: Cross multiply
21,127,357.77x = 31,695,583.26 × 6,553,986.81 - Step 4: Simplify right side
21,127,357.77x = 207,732,434,621,296.81 - Step 5: Solve for x
x = 207,732,434,621,296.81/21,127,357.77 - Step 6: Final answer
x = 9,832,390.63
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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.