Finding the Fourth Proportional to 4,956,430.05, 6,839,991.32 and 2,781,134.09
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Solution
The fourth proportional to 4,956,430.05, 6,839,991.32 and 2,781,134.09 is: 3,838,031.17
Step by Step Solution
- Step 1: Write the proportion equation
4,956,430.05 : 6,839,991.32 = 2,781,134.09 : x - Step 2: Convert to fraction form
4,956,430.05/6,839,991.32 = 2,781,134.09/x - Step 3: Cross multiply
4,956,430.05x = 6,839,991.32 × 2,781,134.09 - Step 4: Simplify right side
4,956,430.05x = 19,022,933,022,678.07 - Step 5: Solve for x
x = 19,022,933,022,678.07/4,956,430.05 - Step 6: Final answer
x = 3,838,031.17
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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.