Finding the Fourth Proportional to 55,439,615.97, 76,507,177.86 and 30,658,522.14
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Solution
The fourth proportional to 55,439,615.97, 76,507,177.86 and 30,658,522.14 is: 42,309,041.38
Step by Step Solution
- Step 1: Write the proportion equation
55,439,615.97 : 76,507,177.86 = 30,658,522.14 : x - Step 2: Convert to fraction form
55,439,615.97/76,507,177.86 = 30,658,522.14/x - Step 3: Cross multiply
55,439,615.97x = 76,507,177.86 × 30,658,522.14 - Step 4: Simplify right side
55,439,615.97x = 2,345,597,006,289,728 - Step 5: Solve for x
x = 2,345,597,006,289,728/55,439,615.97 - Step 6: Final answer
x = 42,309,041.38
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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.