Finding the Fourth Proportional to 13,596,451.20, 18,763,637.76 and 7,485,448.32
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Solution
The fourth proportional to 13,596,451.20, 18,763,637.76 and 7,485,448.32 is: 10,330,213.28
Step by Step Solution
- Step 1: Write the proportion equation
13,596,451.20 : 18,763,637.76 = 7,485,448.32 : x - Step 2: Convert to fraction form
13,596,451.20/18,763,637.76 = 7,485,448.32/x - Step 3: Cross multiply
13,596,451.20x = 18,763,637.76 × 7,485,448.32 - Step 4: Simplify right side
13,596,451.20x = 140,454,240,747,680.58 - Step 5: Solve for x
x = 140,454,240,747,680.58/13,596,451.20 - Step 6: Final answer
x = 10,330,213.28
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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.