Finding the Fourth Proportional to 27,955,730.16, 38,572,525.08 and 15,728,125.68
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Solution
The fourth proportional to 27,955,730.16, 38,572,525.08 and 15,728,125.68 is: 21,701,222.57
Step by Step Solution
- Step 1: Write the proportion equation
27,955,730.16 : 38,572,525.08 = 15,728,125.68 : x - Step 2: Convert to fraction form
27,955,730.16/38,572,525.08 = 15,728,125.68/x - Step 3: Cross multiply
27,955,730.16x = 38,572,525.08 × 15,728,125.68 - Step 4: Simplify right side
27,955,730.16x = 606,673,522,253,192 - Step 5: Solve for x
x = 606,673,522,253,192/27,955,730.16 - Step 6: Final answer
x = 21,701,222.57
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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.