Finding the Fourth Proportional to 9,513,725.14, 13,128,949.28 and 5,162,811.49
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Solution
The fourth proportional to 9,513,725.14, 13,128,949.28 and 5,162,811.49 is: 7,124,684.51
Step by Step Solution
- Step 1: Write the proportion equation
9,513,725.14 : 13,128,949.28 = 5,162,811.49 : x - Step 2: Convert to fraction form
9,513,725.14/13,128,949.28 = 5,162,811.49/x - Step 3: Cross multiply
9,513,725.14x = 13,128,949.28 × 5,162,811.49 - Step 4: Simplify right side
9,513,725.14x = 67,782,290,163,205.06 - Step 5: Solve for x
x = 67,782,290,163,205.06/9,513,725.14 - Step 6: Final answer
x = 7,124,684.51
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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.