Finding the Fourth Proportional to 13,643,154.12, 18,827,612.82 and 7,531,632.84
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Solution
The fourth proportional to 13,643,154.12, 18,827,612.82 and 7,531,632.84 is: 10,393,686.52
Step by Step Solution
- Step 1: Write the proportion equation
13,643,154.12 : 18,827,612.82 = 7,531,632.84 : x - Step 2: Convert to fraction form
13,643,154.12/18,827,612.82 = 7,531,632.84/x - Step 3: Cross multiply
13,643,154.12x = 18,827,612.82 × 7,531,632.84 - Step 4: Simplify right side
13,643,154.12x = 141,802,667,013,917 - Step 5: Solve for x
x = 141,802,667,013,917/13,643,154.12 - Step 6: Final answer
x = 10,393,686.52
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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.