Finding the Fourth Proportional to 13,708,540.80, 18,918,539.28 and 7,596,838.08
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Solution
The fourth proportional to 13,708,540.80, 18,918,539.28 and 7,596,838.08 is: 10,484,053.83
Step by Step Solution
- Step 1: Write the proportion equation
13,708,540.80 : 18,918,539.28 = 7,596,838.08 : x - Step 2: Convert to fraction form
13,708,540.80/18,918,539.28 = 7,596,838.08/x - Step 3: Cross multiply
13,708,540.80x = 18,918,539.28 × 7,596,838.08 - Step 4: Simplify right side
13,708,540.80x = 143,721,079,620,279.78 - Step 5: Solve for x
x = 143,721,079,620,279.78/13,708,540.80 - Step 6: Final answer
x = 10,484,053.83
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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.