Finding the Fourth Proportional to 201,698,381.82, 278,340,937.52 and 112,394,089.97
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Solution
The fourth proportional to 201,698,381.82, 278,340,937.52 and 112,394,089.97 is: 155,102,267.50
Step by Step Solution
- Step 1: Write the proportion equation
201,698,381.82 : 278,340,937.52 = 112,394,089.97 : x - Step 2: Convert to fraction form
201,698,381.82/278,340,937.52 = 112,394,089.97/x - Step 3: Cross multiply
201,698,381.82x = 278,340,937.52 × 112,394,089.97 - Step 4: Simplify right side
201,698,381.82x = 31,283,876,372,003,352 - Step 5: Solve for x
x = 31,283,876,372,003,352/201,698,381.82 - Step 6: Final answer
x = 155,102,267.50
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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.