Finding the Fourth Proportional to 7,148,603.42, 9,865,138.78 and 3,885,425.84
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Solution
The fourth proportional to 7,148,603.42, 9,865,138.78 and 3,885,425.84 is: 5,361,923.56
Step by Step Solution
- Step 1: Write the proportion equation
7,148,603.42 : 9,865,138.78 = 3,885,425.84 : x - Step 2: Convert to fraction form
7,148,603.42/9,865,138.78 = 3,885,425.84/x - Step 3: Cross multiply
7,148,603.42x = 9,865,138.78 × 3,885,425.84 - Step 4: Simplify right side
7,148,603.42x = 38,330,265,130,998.07 - Step 5: Solve for x
x = 38,330,265,130,998.07/7,148,603.42 - Step 6: Final answer
x = 5,361,923.56
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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.