Finding the Fourth Proportional to 7,909,993.81, 10,916,215.29 and 4,425,124.70
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Solution
The fourth proportional to 7,909,993.81, 10,916,215.29 and 4,425,124.70 is: 6,106,909.19
Step by Step Solution
- Step 1: Write the proportion equation
7,909,993.81 : 10,916,215.29 = 4,425,124.70 : x - Step 2: Convert to fraction form
7,909,993.81/10,916,215.29 = 4,425,124.70/x - Step 3: Cross multiply
7,909,993.81x = 10,916,215.29 × 4,425,124.70 - Step 4: Simplify right side
7,909,993.81x = 48,305,613,910,296.66 - Step 5: Solve for x
x = 48,305,613,910,296.66/7,909,993.81 - Step 6: Final answer
x = 6,106,909.19
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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.