Finding the Fourth Proportional to 27,904,659.96, 38,508,878.62 and 15,346,210.98
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Solution
The fourth proportional to 27,904,659.96, 38,508,878.62 and 15,346,210.98 is: 21,178,017.46
Step by Step Solution
- Step 1: Write the proportion equation
27,904,659.96 : 38,508,878.62 = 15,346,210.98 : x - Step 2: Convert to fraction form
27,904,659.96/38,508,878.62 = 15,346,210.98/x - Step 3: Cross multiply
27,904,659.96x = 38,508,878.62 × 15,346,210.98 - Step 4: Simplify right side
27,904,659.96x = 590,965,375,905,731.25 - Step 5: Solve for x
x = 590,965,375,905,731.25/27,904,659.96 - Step 6: Final answer
x = 21,178,017.46
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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.