Finding the Fourth Proportional to 9,991,070.74, 13,787,677.26 and 5,407,392.10
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Solution
The fourth proportional to 9,991,070.74, 13,787,677.26 and 5,407,392.10 is: 7,462,200.90
Step by Step Solution
- Step 1: Write the proportion equation
9,991,070.74 : 13,787,677.26 = 5,407,392.10 : x - Step 2: Convert to fraction form
9,991,070.74/13,787,677.26 = 5,407,392.10/x - Step 3: Cross multiply
9,991,070.74x = 13,787,677.26 × 5,407,392.10 - Step 4: Simplify right side
9,991,070.74x = 74,555,377,093,073.64 - Step 5: Solve for x
x = 74,555,377,093,073.64/9,991,070.74 - Step 6: Final answer
x = 7,462,200.90
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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.