Finding the Fourth Proportional to 13,223,447.13, 18,247,356.46 and 7,421,107.87
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Solution
The fourth proportional to 13,223,447.13, 18,247,356.46 and 7,421,107.87 is: 10,240,567.32
Step by Step Solution
- Step 1: Write the proportion equation
13,223,447.13 : 18,247,356.46 = 7,421,107.87 : x - Step 2: Convert to fraction form
13,223,447.13/18,247,356.46 = 7,421,107.87/x - Step 3: Cross multiply
13,223,447.13x = 18,247,356.46 × 7,421,107.87 - Step 4: Simplify right side
13,223,447.13x = 135,415,600,519,701.81 - Step 5: Solve for x
x = 135,415,600,519,701.81/13,223,447.13 - Step 6: Final answer
x = 10,240,567.32
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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.