Finding the Fourth Proportional to 10,478,175.81, 15,717,264.43 and 2,905,141.77
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Solution
The fourth proportional to 10,478,175.81, 15,717,264.43 and 2,905,141.77 is: 4,357,712.85
Step by Step Solution
- Step 1: Write the proportion equation
10,478,175.81 : 15,717,264.43 = 2,905,141.77 : x - Step 2: Convert to fraction form
10,478,175.81/15,717,264.43 = 2,905,141.77/x - Step 3: Cross multiply
10,478,175.81x = 15,717,264.43 × 2,905,141.77 - Step 4: Simplify right side
10,478,175.81x = 45,660,881,405,728.24 - Step 5: Solve for x
x = 45,660,881,405,728.24/10,478,175.81 - Step 6: Final answer
x = 4,357,712.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.