Finding the Fourth Proportional to 155,358,359.76, 214,394,991.12 and 84,794,620.08
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Solution
The fourth proportional to 155,358,359.76, 214,394,991.12 and 84,794,620.08 is: 117,016,823.86
Step by Step Solution
- Step 1: Write the proportion equation
155,358,359.76 : 214,394,991.12 = 84,794,620.08 : x - Step 2: Convert to fraction form
155,358,359.76/214,394,991.12 = 84,794,620.08/x - Step 3: Cross multiply
155,358,359.76x = 214,394,991.12 × 84,794,620.08 - Step 4: Simplify right side
155,358,359.76x = 18,179,541,819,075,372 - Step 5: Solve for x
x = 18,179,541,819,075,372/155,358,359.76 - Step 6: Final answer
x = 117,016,823.86
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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.