Finding the Fourth Proportional to 13,191,529.68, 18,204,089.04 and 7,390,292.40
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Solution
The fourth proportional to 13,191,529.68, 18,204,089.04 and 7,390,292.40 is: 10,198,479.19
Step by Step Solution
- Step 1: Write the proportion equation
13,191,529.68 : 18,204,089.04 = 7,390,292.40 : x - Step 2: Convert to fraction form
13,191,529.68/18,204,089.04 = 7,390,292.40/x - Step 3: Cross multiply
13,191,529.68x = 18,204,089.04 × 7,390,292.40 - Step 4: Simplify right side
13,191,529.68x = 134,533,540,881,235.30 - Step 5: Solve for x
x = 134,533,540,881,235.30/13,191,529.68 - Step 6: Final answer
x = 10,198,479.19
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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.