Finding the Fourth Proportional to 117,252,202.80, 175,878,304.20 and 86,641,201.20
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Solution
The fourth proportional to 117,252,202.80, 175,878,304.20 and 86,641,201.20 is: 129,961,801.80
Step by Step Solution
- Step 1: Write the proportion equation
117,252,202.80 : 175,878,304.20 = 86,641,201.20 : x - Step 2: Convert to fraction form
117,252,202.80/175,878,304.20 = 86,641,201.20/x - Step 3: Cross multiply
117,252,202.80x = 175,878,304.20 × 86,641,201.20 - Step 4: Simplify right side
117,252,202.80x = 15,238,307,540,907,004 - Step 5: Solve for x
x = 15,238,307,540,907,004/117,252,202.80 - Step 6: Final answer
x = 129,961,801.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.