Finding the Fourth Proportional to 5,455,112,776,103, 7,528,102,576,925.40 and 3,111,430,872,638.80
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Solution
The fourth proportional to 5,455,112,776,103, 7,528,102,576,925.40 and 3,111,430,872,638.80 is: 4,293,801,380,760.88
Step by Step Solution
- Step 1: Write the proportion equation
5,455,112,776,103 : 7,528,102,576,925.40 = 3,111,430,872,638.80 : x - Step 2: Convert to fraction form
5,455,112,776,103/7,528,102,576,925.40 = 3,111,430,872,638.80/x - Step 3: Cross multiply
5,455,112,776,103x = 7,528,102,576,925.40 × 3,111,430,872,638.80 - Step 4: Simplify right side
5,455,112,776,103x = 23,423,170,770,237,395,344,293,888 - Step 5: Solve for x
x = 23,423,170,770,237,395,344,293,888/5,455,112,776,103 - Step 6: Final answer
x = 4,293,801,380,760.88
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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.