Finding the Fourth Proportional to 12,973,357.14, 17,900,262.60 and 7,745,347.80
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Solution
The fourth proportional to 12,973,357.14, 17,900,262.60 and 7,745,347.80 is: 10,686,806.66
Step by Step Solution
- Step 1: Write the proportion equation
12,973,357.14 : 17,900,262.60 = 7,745,347.80 : x - Step 2: Convert to fraction form
12,973,357.14/17,900,262.60 = 7,745,347.80/x - Step 3: Cross multiply
12,973,357.14x = 17,900,262.60 × 7,745,347.80 - Step 4: Simplify right side
12,973,357.14x = 138,643,759,548,332.28 - Step 5: Solve for x
x = 138,643,759,548,332.28/12,973,357.14 - Step 6: Final answer
x = 10,686,806.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.